Thank you for your bug report, according to the log you have errors on the disk
'fs error (device sda5): htree_dirblock_to_tree:997: inode #3671587: comm mkinitramfs: Directory block failed checksum Sep 19 23:50:06 ubuntu kernel: [ 2756.740205] Aborting journal on device sda5-8. Sep 19 23:50:06 ubuntu kernel: [ 2756.765226] EXT4-fs (sda5): Remounting filesystem read-only' you should try to check the filesystem at least ** Changed in: ubiquity (Ubuntu) Importance: Undecided => Low ** Changed in: ubiquity (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1944091 Title: applications crashes, system freezes, cant install again To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1944091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs