The latest Cydia Substrate 0.9.5015, has issues with AppCake it seems.
If you cannot install apps through AppCake, temporarily remove Cydia Substrate (along with any plugin that requires substrate), reboot and re-install any ipa. It should work then.
You can freely install Cydia Substrate after removing it and rebooting. Apps should install fine from then on.
Oke nice Thank you man, i will try this