I just wanted to keep you up to date in case somebody encounters the same problem as me. So apparently Arluwa would have been able to repair the Minolta CLE and they diagnosed the issue as coming from the shutter. However they told me that the cost of the repair would have been about €240 so I decided not to have it repaired as I thought it was too much and it was also just a bit less than what I bought it for. I'm a bit down now as it really is a lovely little camera that is fun to use. Well now it's on my shelf and when I have enough to spend on the repair I'll know where to send it.