If all your apps crashes i doubt it's devs fault.
Try this:
1) delete dalvik and cache from twrp, reboot and check how it's behave
2)it didn't helped then it could be you have corrupted files made by issues in downloading rom. Download rom from pc to minimize chance of corruption, transfer to internal memory or better to sd card.
Flash again rom.
3) if this didn't help then there is a chance you have issue with internal memory.
Backup your data and wipe all partitions then re-flash rom again.
Some tips for reporting bugs, write in post:
1) from which rom you upgraded
2) in which rom language you have issues
3) did you delete dalvik/cache while flashing device
4) did you wipe your internal memory or left all apps in there
5) and most important thing, if you have crashes, you need to make bug report/log report and post in here. Without it devs will not take seriously reported issues.
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