Help Nearly Every App crashes

[Abhi B]

Few days ago I flashed cm 12.1[UNOFFICIAL] without clearing data and cache as I was on cm 12[UNOFFICIAL] but then I decided to flash PAC MAN ROM [OFFICIAL] before flashing the PAC MAN ROM I cleared the data cache etc...while wiping CWM recovery gave me an error ...
which was "E:unknown volume for path [ext-sd]" I still tried to clear dalvick cache etc but still the same error then I flashed the rom and Gapps anyways and rebooted the data was cleared and everything seemed fine but when I tried to install and run apps like 'Adobe Acrobat Reader','Tubemate','Facebook',and some more 3rd party apps they all would FC some would FC on startup some while using them Today I flashed Ressurection Remix 5.5.5[OFFICIAL] by using the same process I used for flashing PAC MAN ROM but CWM gave same error and the apps still DO NOT WORK THESE APPS WORKED FINE IN CM12 and CM12.1
I dont know what is wrong or which step I messed up..
I would be very great full if someone helps me out as I really need those apps to work

Thanks!
And yeah I did no changes in the Kernel and all The only changes I did Are mentioned above

 

[El Presidente]

Are you using links2SD or is part of your SD Card partitioned so you can use it as internal memory?

How are you restoring the apps? Via Titanium or Helium or something else?

You might also want to try Fixing Permissions in recovery.

 

[Abhi B]

Are you using links2SD or is part of your SD Card partitioned so you can use it as internal memory?

How are you restoring the apps? Via Titanium or Helium or something else?

You might also want to try Fixing Permissions in recovery.

Actually the CM 12.1 ROM had messed up partitions(thats what I guess might be the problem) the developer had decreased the /system partition size and unknowingly I flashed that ROM now I guess if somehow I make the Partitions back to normal(default) everything would be fine so if you could tell me how could I go back to default partitions it would be really great of you (the only way I think is by flashing stock rom via odin)
BUT PLEASE IF YOU KNOW ANY OTHER BETTER METHOD PLEASE REPLY I AM DYING HERE
And no I was not using link2sd but was using app called speed swap https://play.google.com/store/apps/details?id=artur.m3rv.myszka.speedupswap&hl=en
Thanks!

[EDIT]
hey I researched more and found if I flash pit file via odin everything will be fine but the question is where could I find the pit file?