The login prompt was probably lost amongst the log lines.
Restart the AP and the first thing you should see is login:
Even if the logs start coming in at this point, continue entering the login username and password until you are able to get in.
Once in you can disable IPSPOOF logs and proceed:
https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-disable-the-DOSATTACK-IPSPOOF-ATTACK-message-on-a-WiNG-AP
Thank you,
Christoph
Christoph S.