About upgrading to the latest version

Hello everyone Since I haven’t upgraded the system for a long time, my original version is lakka-generic.x86_ 64-nightly-2020-08-08_ legacy。 Download the latest one today: lakka-generic.x86_ 64-nightly-20210207-c96c51a. As a result, the problem arises:

How can I fix this problem without reloading the system?How to reset the system partition capacity? Thank you for your reply!