Thank you for recently updating your plugin to make it compatible with Moodle 2.6. I was finally able to give it a try.

When I run it with debug mode set to developer, errors similar to the following, for this and other plugins, appear on the screen:

Invalid get_string() identifier: 'simplecertificate:addinstance' or component 'mod_simplecertificate'. Perhaps you are missing $string['simplecertificate:addinstance'] = ''; in mod/simplecertificate/lang/en/simplecertificate.php?
line 293 of /lib/classes/string_manager_standard.php: call to debugging()
line 6838 of /lib/moodlelib.php: call to core_string_manager_standard->get_string()
line 2955 of /lib/accesslib.php: call to get_string()
line 2813 of /lib/accesslib.php: call to get_capability_string()
line 105 of /admin/roles/classes/capability_table_base.php: call to get_capability_docs_link()
line 202 of /report/rolescapabilities/index.php: call to core_role_capability_table_base->display()

Invalid get_string() identifier: 'simplecertificate:manage' or component 'mod_simplecertificate'. Perhaps you are missing $string['simplecertificate:manage'] = ''; in mod/simplecertificate/lang/en/simplecertificate.php?
line 293 of /lib/classes/string_manager_standard.php: call to debugging()
line 6838 of /lib/moodlelib.php: call to core_string_manager_standard->get_string()
line 2955 of /lib/accesslib.php: call to get_string()
line 2813 of /lib/accesslib.php: call to get_capability_string()
line 105 of /admin/roles/classes/capability_table_base.php: call to get_capability_docs_link()
line 202 of /report/rolescapabilities/index.php: call to core_role_capability_table_base->display()

Invalid get_string() identifier: 'simplecertificate:view' or component 'mod_simplecertificate'. Perhaps you are missing $string['simplecertificate:view'] = ''; in mod/simplecertificate/lang/en/simplecertificate.php?
line 293 of /lib/classes/string_manager_standard.php: call to debugging()
line 6838 of /lib/moodlelib.php: call to core_string_manager_standard->get_string()
line 2955 of /lib/accesslib.php: call to get_string()
line 2813 of /lib/accesslib.php: call to get_capability_string()
line 105 of /admin/roles/classes/capability_table_base.php: call to get_capability_docs_link()
line 202 of /report/rolescapabilities/index.php: call to core_role_capability_table_base->display()

Is this a bug with your plugin or is there something I need to tell developers of these plugins that they need to do? If I need to request a change for this and other plugins, please let me know what message I need to tell them so that this can be fixed.

Best regards,

Michael Milette