Under range light stuck blinking on Minolta x-370s

Hello! I’ve had my Minolta x-370s for about a year now and it’s always been very realizable and worked no problem. Recently however an issue has cropped up where the under range (downward arrow) on the viewfinder is always flashing no matter what I do with the aperture ring. I have tried replacing the batteries and switching off of auto mode but it hasn’t changed anything. I’m worried due to this issue that the shutter speed isn’t properly adjusting to the lighting in shooting which will lead to overexposed pics (the shutter speed is really really slow currently).

Any suggestions on what could be causing this issue?