That means you don’t have the permissions granted to you or your admin group. Just being ownerid or moderatorid isn’t enough. You need the actual permissions as well.

I write   f1 pannel  oxide.grant <my name> <steam id> <admin>

Merged post

 oxide.grant <user or group> <name or steam id> <permission>. 
my name TiryakiHasan 
Steam ID  76561############
 how  code?   what is   user or group?

/o.grant user <your name> kits.admin

How do we authorize the kits I make? I made 5 kinds of kits, how can I ensure which player gets which kit?

TiryakiHasan

How do we authorize the kits I make? I made 5 kinds of kits, how can I ensure which player gets which kit?

You create an individual permission for each kit and then grant that permission to the player or group  you want to have it.
For instance for a kit call Miner you would have this setting

"Miner": {
"Name": "Miner",
"Description": "Reward for 5 Hours on Server",
"RequiredPermission": "kits.miner",

You would then grant that permission (in chat)  with either
/o.grant user <user name> kits.miner    or
/o.grant group <group name> kits.miner