Owning UID: 0 Owning GID: 20
indicates the owning UID and GID.
Effective UID: 108000003 Effective GID: 99
indicates the UID and GID being used by the user.
In this case they don't match. The 'File Permissions' bits are set to 700, meaning the owing UID has read, write and execute, but the group and everyone else have no access to this file. Since the user's UID that is trying to access the file is 108000003 and the owning UID is 0, the user does not have access to the file.
This is not a TSS permission issue but a USS permission issue. For example, if you want grant read and execute access to the owning GROUP (OEDFLTG in the example above) and read and execute access to all other users, change the Unix permission bits on the file from 700 to 755.