I installed LineageOS 14.1 on my Huawei P9 Lite about a week ago. Shortly after I installed Link2SD to convert some apps from user into system apps. During this time I was setting up my phone, installing apps, configuring them and changing system settings, nothing too special, but then I had to use the application once again except this time to freeze an app and it failed. It shows this error when trying to freeze/unfreeze & convert an app:
I tried many things like
But nothing helped. Does anyone have an idea about what's wrong? The only thing that might have caused this were probably my attempts at installing Google Camera, because I had to install many versions, convert them into system apps and also flash a "front camera fix" zip through TWRP.