AirBoy

Hi all Audiers. Had this car for a while now and really enjoying it but it started going into limp mode the other day and I suspect the EGR valve being temperamental. Can someone help me properly diagnose and possibly find a solution? I would not like to replace EGR if is not aboslutely necessary. If there is any other information I can provide, please let me know. Also, sorry if I have posted in the wrong place but search returned nothing on EGR keyword. Many thanks. Please see logs below: