Maybe if you try follow this tutorial it will help?
https://devbest.com/threads/diy-add-new-clothing-catalog-clothing-for-plus.78789/
+ try turn MySQL strict off.
Wrong section. Craig quit so I don't think there are any "official" developers around but I do know that there are some 'lazy' devs such as @Atomic who has talent but is lazy as a donkey.
Your first problem may be something to do with the database, check server_settings since its not recognising that specific text. As for your second issue, I believe it is in the server_landing. Correct me if I am wrong but it is something to do with the landing.