Execute this following SQL request into the affected DB,

DELETE FROM ir_attachment WHERE datas_fname SIMILAR TO '%.(js|css)'

, I hope it can help

Hi Jhonnel, there is a problem with the HTML widget in the user record's settings. It suggests that the 'html' widget type is not supported or properly implemented in this version of Odoo. To resolve this issue, you may need to check your customizations or extensions and ensure they are compatible with Odoo 10 or consider updating to a newer version of Odoo where this issue may be resolved.