Plugin used to work up until recent WP upgrades.
My latest WP version is 5.3
I have uninstalled the plugin the deleted , then searched and then re installed the plugin.
Before I tested I made sure that my ID was correct after confirming in writing from SecurePayment. Yes it was a 7 digit case sensetive ID.
Password was also correct.
Entering Sample Merchant ID : ABC0001 and Password: abc123 works
When I enter my own ID and password I get Payment can not be processed (Invalid merchant ID)
Can you please help
The page I need help with: [log in to see the link]
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