OpenCart Checkout Error & Mail Issue

Job ID: 38928484

Budget: €8 – €30 EUR

I'm facing an issue with my OpenCart store. Before the payment processing begins, an error message pops up during checkout, which is impacting my customers' shopping experience and ultimately my sales. Additionally, I'm trying to send mail via the OpenCart panel but encountering problems as well.

At the beginning give SMTP error and now Syntax error

If you have extensive experience with OpenCart and you're skilled in troubleshooting technical issues, please reach out. I need someone who can swiftly pinpoint these problems and implement effective solutions. Your expertise could help restore smooth operations to my online store.
Related categories: PHP eCommerce Open Cart Email Handling SMTP