Hi @hcetin032
I hope you’re well today!
We’d need to know the exact error the site gives to be able to find out why it happens and how to fix that. I’m not aware of any generic/general errors that could cause that and usually it’s a matter of site or server configuration/resources or some unexpected conflicts.
So to find out about specific error, you can do as follows:
1. enable WordPress debugging by adding following lines to the “wp-config.php” file of the site, above “/* That’s all, stop editing */” line:
define( 'WP_DEBUG', true );
define( 'WP_DEBUG_DISPLAY', false );
define( 'WP_DEBUG_LOG', true );
2. once they are there, try enabling the plugin (newest release) on site again; it will fail again but this time you should find out a file called “debug.log” on server in the “/wp-content” folder; if you look into that file you should see some errors listed there, especially fatal errror(s) – so let us know what exactly those errors say.
As for revert to older version, since you have access to the site you can simply do as follows:
1. download older version of the plugin from this page (form at the bottom):
https://www.ads-software.com/plugins/forminator/advanced/
2. go to “Plugins -> Add new” page and use “Upload” option there to install plugin from downloaded zip file
3. during the process you’ll be asked if you want to replace existing files with uploaded ones – so confirm replacement and that’s it; plugin will be reverted to older version (though if it’s inactive, you will need to activate it again to use it).
Kind regards,
Adam
