Hello, Gewoonbovenaan,
We have identified that the activation of the Deals, Sales Promotions and Upsells Pro plugin caused a fatal error, as seen in the log located at https://prnt.sc/QUpZXtWhwhn6 . To resolve the issue, we have disabled the plugin. If you require further assistance, please contact the support team of the plugin.
For future reference, we recommend that you check the log before posting questions on the forum: WooCommerce > Status > Logs.
Kind Regards,
8theme team