Error in Commercial tab plugin : Uncaught Error: OTGSInstallerCollection::of()

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Last updated by Paolo Sax 5 months, 1 week ago.

Author	Posts
July 21, 2025 at 9:14 am #17254330
Paolo Sax	Background of the issue: I was trying to deregister and register again WPML in a local dev installation because it keeps generating syntax errors in the WordPress REST API. However, when accessing the Plugin -> Commercial tab, I encountered an error. I expected to see the link to unregister the plugin. Symptoms: Uncaught Error: OTGSInstallerCollection::of(): Argument #1 ($array) must be of type array, null given, called in C:laragonwwwbewebbi-starterwebapppluginssitepress-multilingual-cmsvendorotgsinstallerincludesclass-wp-installer.php on line 1451 in C:laragonwwwbewebbi-starterwebapppluginssitepress-multilingual-cmsvendorotgsinstallerincludesutilitiesCollection.php on line 27. Questions: How can I resolve the error in the Commercial tab when trying to deregister and register WPML? What causes the syntax errors in the WordPress REST API related to WPML?

Author

Posts

July 21, 2025 at 9:14 am #17254330

Background of the issue:
I was trying to deregister and register again WPML in a local dev installation because it keeps generating syntax errors in the WordPress REST API. However, when accessing the Plugin -> Commercial tab, I encountered an error. I expected to see the link to unregister the plugin.

Symptoms:
Uncaught Error: OTGSInstallerCollection::of(): Argument #1 ($array) must be of type array, null given, called in C:laragonwwwbewebbi-starterwebapppluginssitepress-multilingual-cmsvendorotgsinstallerincludesclass-wp-installer.php on line 1451 in C:laragonwwwbewebbi-starterwebapppluginssitepress-multilingual-cmsvendorotgsinstallerincludesutilitiesCollection.php on line 27.

Questions:
How can I resolve the error in the Commercial tab when trying to deregister and register WPML?
What causes the syntax errors in the WordPress REST API related to WPML?

The topic ‘[Closed] Error in Commercial tab plugin : Uncaught Error: OTGSInstallerCollection::of()’ is closed to new replies.