The simplest solution would be to do these steps:
1. Go to the B-Core >>> htaccess File Editor >>> manually edit your Plugin Firewall .htaccess file and delete (copy them first to a Notepad text file on your computer before deleting them) all of the SetEnvIf Request_URI rules between # BEGIN WHITELIST: Frontend Loading Website Plugin scripts/files and # END WHITELIST and save your edits/changes. You will also need to manually delete “Allow from env=whitelist” in the FilesMatch section of code in your Plugin Firewall .htaccess file.
2. Go to the Security Modes page, scroll down to the Plugin Firewall area/section, click on the Additional Whitelist Tools Accordian tab and you will see the Plugin Override tool.
3. You will need to add plugin folder paths for all the plugins that need to be overrided.
The BPS Pro plugin needs to have an override / plugin folder path entered/added. You will see a similar path displayed to you above the Plugin Override text box: /xxxx/xxxxx/html/forum/wp-content/plugins/example-plugin. Copy this path into the text box and change the plugin folder name from “example-plugin” to an actual plugin folder name that needs an override added in that plugin folder and click the Add button. For BPS Pro that plugin folder name would be: bulletproof-security
Example: /xxxx/xxxxx/html/forum/wp-content/plugins/bulletproof-security
You would repeat this process for each plugin that needs to have an override added to that plugin’s folder. From the list of SetEnvIf Request_URI rules you copied to your computer you should be able to get all the plugin folder names from those SetEnvIf rules.