My horizon has gone all to pot

,this last patrol has seen some terrible weather so I didn't notice it much but on the 1 day of fine weather I noticed that my horizon has a lean from right to left,the hole sub leans that way when on the kaleun's position in the turm:hmm:if you look through the UZO or the periscope everything is fine,strange thing is if you pan the camera round,the slope stays with you no matter what part of the ocean you are looking at

.Is there any way to fix this?any help very appreciated