Cant install apps from Play store or using APK file and MIUI storage calculates 0 free space

First time asking so please correct me if I am wrong,Also please suggest me title for this question I have redmi 8 running miui 12 , Recently I cant install apps from playstore it keeps pending and after a while it show storage full . But I have plenty of space about 30GB out of 64GB . And when I try to install apk file , the package manager stop with a black screen and nothing happens . I checked mobile storage and it display only "/" After I click on storage it take about 4 minutes to calculate storage and then show actual storage that is "33gb/64Gb" [![mi storage calculating storage]] Edit - The mobile also hangs a lot and it ram usage get high . 1 gb left out of 4gb I tried debugging using adb and found that installd and system-server were consuming ram like 48% and 42%  Edit 2 - tried debugging (user app list generated by adebar) https://pastebin.pl/view/91afe4ff