By uninstalling you delete your data directory where the wallet is. But your screenshot shows a trade so you have not deleted the data directory.
It might be that the spv file is corrupted. To fix this follow those steps:
https://forum.bitsquare.io/t/blockstoreexception-corrupted-spvchain-file/1689
If that does not help the wallet itself is corrupted. Here are instructions how to recover:
https://forum.bitsquare.io/t/restore-a-corrupted-wallet/1709
Make a backup before doing anything of the above…