2 Errors

Hi.
I got two errors:

1. The first one is:
   Found a field with an unknown type!
   I use on/off setting in option-tree and this plugin can’t detect it.
2. The second one is:
   When I click on the save button, an error shown in inspect and a message shown:
   Please refresh the page
   And the error on inspect elements is:
   Failed to load resource: the server responded with a status of 400 (Bad Request)

Please help me or update this plugin.
Thanks.