Thank you very much for your response.
Actually, I wasn’t involved with the admin of the journal website, and the person who was handling this system passed away.
I have no idea whether the there are journal managers or not, and the original web hosting (and the old ojs system) is not operational now.
I only have the backup of the website files and the database backup (.sql)
Meaning, I can’t check (via the system) if there are managers for the journal or not.
By the way, there is only one journal in my system.
Could you please show me how to check for journal manager issue in the database? and how to fix it?
Can I just use SQL queries to add the missing assignment of the journal manager?
Thanks again for your help.