Greetings ,
Repair options for this body are limited as it is end of life and over 11 years old.
midwestcamera dot com maybe a good repair resource.
I don't typically advocate self-repair. If it doesn't work out, your camera may be completely inoperable. Midwest camera will give you a free estimate if this camera is one they can service.
~Rick
Bay Area - CA
~R5 C (1.0.7.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8
~CarePaks Are Worth It
