Hello Bykee,
welcome at Stridaforum!
I think it might be possible to repair the mechanism - but that is anyway tricky.
Here is an older post, referring to the function:
Re: How does the bottom bar latch work?
You could simply replace the whole part, it’s not that expensive and there are just two bolts:
https://stridacanada.ca/product/strida-locking-latch-bolts/
What do you think?
Added hint: You were logged out during posting automatically - don’t worry…