.asec file corrupt, apps not working when trying to move apps from internal storage to SD card

I have a Samsung Galaxy A7 Lite tablet with updated Android and a 32GB Adata SD card I bought a few months ago. I was trying to move apps from internal storage to an SD card and the tablet suddenly crashed. Now, the apps on the SD card are greyed out and not usable. I tried to move SD card files to a PC and it cannot copy one file with the **asec** extension. The error indicates it's corrupt or broken. Could that be the problem? I don't want to lose data as much as possible. How can I solve it?