Hi umar
I apologize for any inconvenience caused. Sorry to be repetitive with asking about the plugins test, but it's always the first step in order to start investigating, as many issues reported are related to this.
Said this, if the problem persists, I have to ask you to open a private ticket and provide us with your website credentials in order to take a look.
This is the link to open the private ticket: https://stockmanagementlabs.ticksy.com/
Best Regards,
Andrea.