Preliminaries:

• Shopkeepers version: <2.16.5>
• Spigot version: <idk how to get it>
• My config of shopkeepers: <https://paste.gg/p/anonymous/f8cd1d26f1e94db8ad1ee7d95d79e395>
• HEX Colors Generator https://www.simplymc.art/Gradients/

The issue:

when i change shopkeeper name to HEX COLORS he wont change and i checked if i changed regex to name-regex: "[A-Za-z0-9&§# ]{3,25}" in config

video: https://imgur.com/HHH0ErS

That? &#A65A00&ld

Names with hex color can get quite long. Your name-regex currently specified a maximum character limit of 25. So try to increase that. There is a built-in limit of 256 characters.

I DID IT

BUT NOT WORKING @blablubbabc

VIDEO : https://imgur.com/HHH0ErS

Maybe try with a short name first, with a single hex color. If that works, then your non-working name is too long.

THAT IS SMALL

SEE

if he long it will say

Internally, the server converts hex colors to a more verbose representation that takes 2 characters per hex digit. So a single hex color like &#123456 internally becomes &x&1&2&3&4&5&6. The name length limit is applied to this expanded form.

Edit: Also, older Shopkeeper versions even had a hard limit of 128, instead of 256.
And you need to make sure you increase the default limit inside the config, as noted above.