Could you search your XenForo folder for another copy of Mollie’s PHP library?
This add-on uses mollie-api-php under src/addons/Wutime/Mollie/vendor/. XenForo shares one PSR-4 autoloader across add-ons, so if another add-on also ships Mollie\Api\…, that copy can load instead of mine and cause this error.
Please check for other vendor/mollie (or mollie-api-php) paths under src/addons/ and tell me which add-on they belong to.
Meanwhile I'll make 1.7.1 stop that extra lookup on webhooks (I'll use the refund/chargeback amounts already on the payment), so this specific error should go away even if the older library is still present.
Note, if you have another add-on bundling Mollie v2 while this add-on uses Mollie v3, and the v2 loads first, issues will continue.
This add-on uses mollie-api-php under src/addons/Wutime/Mollie/vendor/. XenForo shares one PSR-4 autoloader across add-ons, so if another add-on also ships Mollie\Api\…, that copy can load instead of mine and cause this error.
Please check for other vendor/mollie (or mollie-api-php) paths under src/addons/ and tell me which add-on they belong to.
Meanwhile I'll make 1.7.1 stop that extra lookup on webhooks (I'll use the refund/chargeback amounts already on the payment), so this specific error should go away even if the older library is still present.
Note, if you have another add-on bundling Mollie v2 while this add-on uses Mollie v3, and the v2 loads first, issues will continue.
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