For the most part, clearing data wont help TeMeFI to right any wrongs. I re-create what you need on every startup as its quite small. If anything, clearing the cache can fix some weird issues. Another avenue, is deleting your /sdcard/TeMeFI folder, where I store your settingss, configuration and FavoritesSir @DiamondJohn , may i know how to fix this? TemeFI seems a bit weird in my phone. Thats not what it looks like when i installed it first after reflashing my firmware. I can't see the detach section now and the other features. I dont want to clear the data of it because it may mess up the detach feature which is still working even though the feature is missing inside the app.
Any ideas? Thanks.
HOWEVER! what appears to be your specific issue is that TeMeFI has not been granted root.
Check in Magisk that root is allowed specifically for TeMeFI. If you watch carefully, and have not explicitly turned it (ie notifications from Magisk) off, you will also catch a short toast from Magisk telling you that TeMeFI was denied root.