My external device SSD not able to mount for my data files

[Muhammad Umar Farooq]

the below is result after applying sudo dmesg and whereis journalctl commands

[  465.552645] scsi 6:0:0:0: Direct-Access        Mass  Storage Device        PQ: 0 ANSI: 0
[  465.553631] sd 6:0:0:0: Attached scsi generic sg2 type 0
[  465.554270] sd 6:0:0:0: [sdc] 250069678 512-byte logical blocks: (128 GB/119 GiB)
[  465.555011] sd 6:0:0:0: [sdc] Write Protect is off
[  465.555019] sd 6:0:0:0: [sdc] Mode Sense: 03 00 00 00
[  465.555893] sd 6:0:0:0: [sdc] No Caching mode page found
[  465.555904] sd 6:0:0:0: [sdc] Assuming drive cache: write through
[  465.593769]  sdc: sdc1 sdc2 < sdc5 >
[  465.595990] sd 6:0:0:0: [sdc] Attached SCSI disk
[  475.971310] EXT4-fs error (device sdc5): ext4_get_journal_inode:5151: inode #8: comm pool-udisksd: iget: special inode unallocated
[  475.972281] EXT4-fs (sdc5): Remounting filesystem read-only
[  475.972290] EXT4-fs (sdc5): no journal found
[  480.966096] FAT-fs (sdc1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[  496.691682] EXT4-fs error (device sdc5): ext4_get_journal_inode:5151: inode #8: comm pool-udisksd: iget: special inode unallocated
[  496.692329] EXT4-fs (sdc5): Remounting filesystem read-only
[  496.692361] EXT4-fs (sdc5): no journal found
 linuxlite  ~  whereis journalctl
journalctl: /usr/bin/journalctl /usr/share/man/man1/journalctl.1.gz
 linuxlite  ~ 