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?

CodePudding user response：

If you mean Skyverge product, it's actual issue. Skyverge is looking for a solution. But if ASAP, then try to replace with PDF plugin version 3.8, not 3.9 and newer.

CodePudding user response：

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.