Error when installing favorite plugins

I am getting error: “Installation failed: Forbidden”

I have disabled system tweaks in ithemes security.

Hi Andrew,

Do you have HTTP Basic Auth set on your MainWP Dashboard site?

no, neither of the websites are using HTTP basic auth.

Hi Andrew,

Do you use some security plugin on your MainWP Dashboard site? If yes, can you try to temporarily disable it and see if that helps?

I disabled iThemes security.
Now I am getting a different error.
Installation failed: PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature

Hm, that seems as problem with the ZIP file.

Can you try to extract the archive file on your computer and repack it?

It’s an issue with like 12 plugins. You really think it could be an issue with the zip on all plugins?

In all cases that I have seen so far, it was either corrupted ZIP or some server-side problem such as inability to extract or no enough available space on the disc.

If you can try with one plugin, it would be great.

If that doesn’t help, can you please post the community system report from your MainWP Dashboard for review?

The report is located in your Dashboard under Status → Server, on the top right of the page.

Be sure to use the button like the one below; this button hides all your private information:


Pressing the button auto-copies the report to your clipboard then just paste it in a reply here.

after further investigation, it seems to happen when I try to install an entire plugin group. If I do 1 plugin at a time, it seems to work. …
see video (expires in 60-days): Favorite Plugins DreamSite Gurus Dev Sandbox WordPress

here is my SERVER REPORT


### Server Info                    Required                                               Detected                                     Status   ###

MainWP Dashboard                   
MainWP Dashboard Version           4.1.6                                                  4.1.6                                        Pass        
MainWP Upload Directory            Writable                                               Writable                                     Pass        
MainWP Extensions                  
MainWP Buddy Extension             4.0.1                                                  API License Active                           Pass        
MainWP Favorites Extension         4.0.5                                                  API License Active                           Pass        
MainWP Google Analytics Extension                                                API License Active                           Pass        
MainWP iThemes Security Extension  4.0.4                                                  API License Active                           Pass        
MainWP Page Speed Extension                                                API License Active                           Pass        
MainWP Pro Reports Extension       4.0.4                                                  API License Active                           Pass        
MainWP Rocket Extension            4.0.2                                                  API License Active                           Pass        
MainWP Team Control                                                      API License Active                           Pass        
MainWP Vulnerability Checker Extension4.0.3.1                                                API License Active                           Pass        
WordPress Version                  >=3.6                                                  5.7.1                                        Pass        
WordPress Memory Limit             >=64M                                                  256M                                         Pass        
MultiSite Disabled                 =true                                                  true                                         Pass        
FileSystem Method                  = direct                                               direct                                       Pass        
PHP Version                        >=5.6                                                  7.4.16                                       Pass        
PHP Safe Mode Disabled             =true                                                  true                                         Pass        
PHP Max Execution Time             >=30 seconds                                           30                                           Pass        
PHP Max Input Time                 >=30 seconds                                           60                                           Pass        
PHP Memory Limit                   >=128M                                                 256M                                         Pass        
PCRE Backtracking Limit            >=10000                                                1000000                                      Pass        
PHP Upload Max Filesize            >=2M                                                   512M                                         Pass        
PHP Post Max Size                  >=2M                                                   512M                                         Pass        
SSL Extension Enabled              =true                                                  true                                         Pass        
SSL Warnings                       = empty                                                                                             Pass        
cURL Extension Enabled             =true                                                  true                                         Pass        
cURL Timeout                       >=300 seconds                                          60                                           Warning     
cURL Version                       >=7.18.1                                               7.68.0                                       Pass        
cURL SSL Version                   >=OpenSSL/0.9.8l                                       OpenSSL/1.1.1f                               Pass        
PHP Allow URL fopen                YES                                                    
PHP Exif Support                   YES ( V7.4.)                                           
PHP IPTC Support                   YES                                                    
PHP XML Support                    YES                                                    
PHP Disabled Functions             _getppid, diskfreespace, dl, escapeshellcmd, exec, fpassthru, getmyuid, highlight_file, ini_alter, ini_alter, leak, link, listen, passthru, pcntl_exec, popen, posix, posix_ctermid, posix_getcwd, posix_getegid, posix_geteuid, posix_geteuid, posix_getgid, posix_getgrgid, posix_getgrnam, posix_getgroups, posix_getlogin, posix_getpgid, posix_getpgrp, posix_getpid, posix_getpwuid, posix_getrlimit, posix_getsid, posix_getuid, posix_isatty, posix_kill, posix_mkfifo, posix_setegid, posix_seteuid, posix_setgid, posix_setpgid, posix_setsid, posix_setuid, posix_times, posix_ttyname, posix_uname, proc_close, proc_nice, proc_open, proc_terminate, shell_exec, show_source, socket_accept, socket_bind, socket_clear_error, socket_close, socket_connect, socket_create_listen, socket_create_pair, socket_listen, socket_read, source, stream_socket_server, symlink, system, virtual,
PHP Loaded Extensions              Core, FFI, PDO, Phar, Reflection, SPL, SimpleXML, Zend OPcache, bcmath, bz2, calendar, cgi-fcgi, ctype, curl, date, dom, enchant, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, iconv, igbinary, imap, intl, json, libxml, mbstring, memcache, memcached, msgpack, mysqli, mysqlnd, openssl, pcntl, pcre, pdo_mysql, pdo_sqlite, posix, pspell, readline, redis, session, shmop, soap, sockets, sodium, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tidy, tokenizer, xml, xmlreader, xmlrpc, xmlwriter, xsl, zip, zlib
MySQL Version                      >=5.0                                                  10.4.18-MariaDB-1:10.4.18+maria~focal-log    Pass        
MySQL Client Encoding              utf8                                                   
Server Info                        
Server Software                    nginx/1.19.2                                           
Operating System                   Linux                                                  
Architecture                       64		 bit                                               
Server Protocol                    HTTP/1.1                                               
HTTPS                              ON                                                     
Server self connect                Not expected HTTP response body:                       
User Agent                         Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.85 Safari/537.36
Gateway Interface                  CGI/1.1                                                
Memory Usage                       4.8 MB                                                 
Request Time                       1619017047                                             
Accept Content                     text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Charset Content             N/A                                                    
MainWP Settings                    
Number Of Child Sites              9                                                      
Use WP-Cron                        No                                                     
Optimize for Shared Hosting or Big NetworksNo                                                     
Automatic Daily Update             Install trusted updates                                
Abandoned Plugins/Themes Tolerance                                                        
Maximum number of posts to return                                                         
Maximum number of pages to return                                                         
Primary Backup System              Default MainWP Backups                                 
Maximum simultaneous requests      4                                                      
Minimum delay between requests     200                                                    
Maximum simultaneous requests per ip1                                                      
Minimum delay between requests to the same ip1000                                                   
Maximum simultaneous sync requests                                                        
Minimum simultaneous install/update requests                                                       
Active Plugins                     
iThemes Security Pro               6.8.4                                                  Inactive                                     
MainWP Dashboard                   4.1.6                                                  Active                                       
Tailored Login                     1.0.46                                                 Active                                       
WordPress Backup & Security Plugin - BlogVault4.57                                                   Active                                       


It seems that the child site is not able to process 14 installs at the same time.

Do you have some other child site on a different server to test and see if it works there?

It might be good to check with the host support if they can find in server logs which limit gets hit causing the process to fail.