Ok, generally the MySQL server only save/shares the metadata of the file and as well as it’s location. So therefore it is important that you either access them in the same way from all machines and/or use respective path substitution as mentioned above.
But now looking at your file this seems to be working respectively.
Assuming you are trying to access The.Big.Short.2015.DVDScr.XVID.AC3.HQ.Hive-CM8.avi it seems that there is an access problem to your smb shares.
May 16 21:54:06 osmc mediacenter[402]: SPNEGO(ntlmssp) login failed: NT_STATUS_WRONG_CREDENTIAL_HANDLE
May 16 21:54:06 osmc mediacenter[402]: SPNEGO login failed: The supplied credential handle does not match the credential that is associated with the security context.
Are you accessing the smb shares as “guest” (password less)? If that is the case then take a look at here [Quick Fix] Problem accessing legacy and guest samba shares after SMB security update on April 14th