A320 Autopilot disconnets MCDU

Autopilot on the A320(default) keeps disconnecting and i can’t work out why and i can’t get the aircraft get back to flying to the flight plan on the mcdu, and there’s also no flight plan discontinued on the mcdu flight plan. HELP! This has happening too many times now, i can’t remember the last free flight i did where i had no problems.

controll settings is first step.

You got a screenshot of this?

For AP disconnecting, it could be control settings, or even AI assists, or I guess even weather?