Freron MailMate

Hi, I need a help regarding my issue when connecting to Gmail.
Most of the case MailMate is rejected for somewhat reason.

I'd appreciate if someone knows how to solve this issue.

01:49:07 Running action
01:49:07 Handling request
01:49:07 Trying to disconnect nicely (8)...
01:49:07 C: A2 LOGOUT
01:49:08 S: * BYE Logout Requested v10mb50057990iot
01:49:08 S: A2 OK Quoth the raven, nevermore... v10mb50057990iot
01:49:08 Clearing connection to imap.gmail.com
01:49:08 Ready to run action (type: 1000, retry count: 0)
01:49:08 Clearing connection to imap.gmail.com
01:49:08 Trying to connect to imap.gmail.com on port 993 (CFNetwork) without STARTTLS (required)
01:49:08 Resolved hostname (imap.gmail.com).
01:49:08 Prepare secure connection...
01:49:08 Successful connection.
01:49:08 Initiating secure connection...
01:49:08  Returned (4)...
01:49:08 Protocol version: kTLSProtocol12
01:49:08 S: * OK Gimap ready for requests from 201.14.144.78 v66mb346513564iva
01:49:08 C: A0 CAPABILITY
01:49:08 S: * CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 XYZZY SASL-IR AUTH=XOAUTH2 AUTH=PLAIN AUTH=PLAIN-CLIENTTOKEN AUTH=OAUTHBEARER AUTH=XOAUTH
01:49:08 S: A0 OK Thats all she wrote! v66mb346513564iva
01:49:08 Retrieving password (keychain or user request)
01:49:08 C: A1 AUTHENTICATE XOAUTH2 ••••••••••
01:49:10 S: + eyJzdGF0dXMiOiI0MDAiLCJzY2hlbWVzI1kfja94kjajgiwic2NvcGUiOiJodHRwczovL21haWwuZ29vZ2xlLmNvbS8ifQ==
01:49:10 C: 
01:49:10 S: A1 NO Temporary system problem.  Please try again later. v66mb346513564iva
01:49:10 Error: Server response: “A1 NO Temporary system problem.  Please try again later. v66mb346513564iva”. Command attempted: “A1 AUTHENTICATE XOAUTH2 ••••••••••”.
01:49:10 Error: OAUTH2 error is {"status":"400","schemes":"Bearer","scope":"https://mail.google.com/"}
01:49:10 Retrieving password (keychain or user request)
01:49:10 Error code: 12
01:49:10 Failed action (1000). Reset observed read/write timeouts: 8/8

01:49:10 Handling reply
01:49:12 Terminating non-running connection...

Mailmate: Version 1.14 (5807)
Mac: Version 11.5.1