Looks like something might be wrong with your config. I would try adding it as a new connection and trying again.
After nostr:nprofile1qqsrf5h4ya83jk8u6t9jgc76h6kalz3plp9vusjpm2ygqgalqhxgp9gpz4mhxue69uhk2er9dchxummnw3ezumrpdejqzyrhwden5te0dehhxarj9ekxzmnyqyt8wumn8ghj7un9d3shjtnwdaehgu3wvfskueq555fk2 upgrade to 0.9.5 the app doesn't start anymore, is there a way to rollback to 0.9.4 without reinstalling?
#asknostr

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Already done but it doesn't let me save the new one
Something is corrupted. I would try to uninstall and start fresh.
You can DM or email support if that fails.