We installed the McGraw-Hill plugin on moodle version 3.5.1 for the integration needs of our moodle with McGraw-Hill so that we could use the books of McGraw-Hill.
When we have successfully installed the plugin, there is a problem in the administrator page section. When logging into the Administrator page show the Plugin Check page with the McGraw-Hill plugin block. Administrator cannot do anything on the page. I include a screen capture of the page below. There is an Additional button in the McGraw-Hill plugin block but it cannot be clicked, just like a text.
Because of this we decided to uninstall the plugin so that we can access the administrator page normally.
I hope anyone in this forum has the same experience, so I can ask for help and support to be able to install the McGraw-Hill plugin.