It was a horrible bug and the code was mixed between frontend & backend, with several scripts essentially running the same thing / interfering with each other and causing the issue.
It was an inherited OpenCart site.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Couple of days........
It was a horrible bug and the code was mixed between frontend & backend, with several scripts essentially running the same thing / interfering with each other and causing the issue.
It was an inherited OpenCart site.