Connect to your file system using a FTP client like FileZilla or the File manager of your Hosting cPanel. Then delete the /wpforo/ folder from the /wp-content/plugins/ directory.
Then, go to Dashboard > Plugins admin page and install the new 2.1.4 version.
@martin Please what will happen to the contents of my forum?
Will I lost them when I delete the wpforo to install the latest version ?
I sent a mail to my host earlier about the issue and i got a response from them that the site /wp-admin is working, when i checked it opened.
so I upgraded the wpforo plugin to version 2.1.4, I cleared the cache and flushed permalinks and the links started opening gradually. As at now all the links are working fine from my end.
What could've caused this? because no plugins are on auto-update or should i enable auto-update for wpforo plugin?
Thanks
Yes, please disable the auto-update for wpForo. We don't recommend using it for all plugins.