HTC Desire 610 apps crash and just reboots

It sounds as if it's time to reflash the stock ROM (and hope it's not a hardware problem - a good used one would probably be cheaper than a motherboard replacement; back up everything while you still can, because either way - new motherboard or replacement phone - you lose everything that's on this phone).
 
Older stock ROMs can be weird even if their Android version does support whatever apps you are using. Get a new phone.
 

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