Thanks for the notification. Error in line 211 is caused by a typo skipped the tests somehow. Valid method name for call here is URE_GF_Access_User::get_gf_list(). Fixed.
Related update was introduced with version 4.61 “New: Gravity Forms Edit Access add-on: It’s possible to set what forms is allowed to edit for the selected role.”. It should use “Allow” value by default for not updated user profiles.
I’m ready to investigate the issue. If it’s possible to get admin access to your site (stage/development copy better) send credentials to support [at-sign] role-editor.com