thomas-jamesW

Problem:
The client experienced a fatal error and the backend became unreachable after installing the WPML CMS plugin. This issue arose in conjunction with the OptimizePress Dashboard plugin.

Solution:
We recommended modifying the OptimizePress plugin to ensure compatibility with WPML. Specifically, the client should:
1. Edit the

helpers.php

file located at

plugins/op-dashboard/src/helpers.php

.
2. Find the function

get_installation_url()

at line 529.
3. Update the

add_filter

call to include four arguments:

add_filter('home_url', array($wpml_url_filters, 'home_url_filter'), -10, 4);

This adjustment helps the 'home_url' filter to pass the expected number of arguments, potentially resolving the fatal error. We also suggested that the client contact OptimizePress support to encourage them to officially support WPML or to implement this fix in their future releases. More information on getting plugins to work with WPML can be found at https://wpml.org/documentation/support/go-global-program/.

If this solution does not resolve the issue or seems outdated, or if it does not apply to your case, please open a new support ticket. We highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. For further assistance, you can also visit our support forum at https://wpml.org/forums/forum/english-support/.