Issue
platform: wordpress + woocommerce + PDF Product Vouchers
When generating a voucher, an error sometimes pops up: could not generate voucher pdf: cannot create voucher: incorrect magic number (0)
What could be the problem?
Solution
The problem was caused by the plugin: mail log. After disabling, everything works without errors. Probably the problem is in the incorrect function of sending letters.
Answered By - Дмитрий Самохин Answer Checked By - Gilberto Lyons (WPSolving Admin)