update_module_button() has been deprecated and should not be used anymore. Activity modules should not add the edit module button, the link is already available in the Administration block. Themes can choose to display the link in the buttons row consistently for all module types.
line 1037 of /lib/deprecatedlib.php: call to debugging()
line 259 of /mod/acresource/locallib.php: call to update_module_button()
line 103 of /mod/acresource/locallib.php: call to acresource_print_header()
line 104 of /mod/acresource/view.php: call to acresource_display_embed()
line 82 of /local/cleanurls/router.php: call to require()