Loose wall cabinet on R Pod-180

[Rpod-180]

I have an 2025 R Pod 180 that has a wall cabinet that has moved about 1/2 in. from the wall at it's upper end next to ceiling. Was asking for advise as to how to reattach ? It seems tight on inside of cabinet but outside has moved on end next to door, opposite end has not moved. Thank you

 

[Gronk]

Maybe post a picture of it? That may help get more ideas for repairs.