BLOB/文本列'bestilling'在没有密钥长度的密钥规范中使用

I am trying to make a order system, but I am stuck right now. In the mysql tabel right now, I am using varchar(255) in a column named "bestillinger", but it can only store 255 chars. So I searched a bit, and remembered that i could use longtext or just text, but now when i try to do it, i get a error saying:I am trying to make a order system, but I am st