My Joomla 4.x store is running VirtueMart and the checkout stage is breaking—customers can’t complete their orders. The folllowing error appears: " 1267 Illegal mix of collations (utf8mb4_unicode_ci,IMPLICIT) and (utf8mb4_general_ci,IMPLICIT) for operation '=' " I need a quick, precise bug-fix: • Diagnose the exact cause of the checkout failure in VirtueMart on Joomla 4.x • Apply a clean fix so customers can place orders end-to-end again • Give me a short summary of what you changed so I can keep the site stable after future updates No redesigns or extra features; just get checkout working smoothly. Access to the staging and live sites is ready as soon as you’re available. the job should be finish during the next week. You can check the error by placing an order in the shop (German language) https://www.trainingmitsystem.de/fertige-trainingsplaene Please estimate how long it will take to fix it. If your job goes well, I will be happy to work with you in the future. Thanks