DB error duplicate entry problem about monster name

[AinsLord]

[SQL]: DB error - Duplicate entry '$MonsterName$-0' for key 'PRIMARY'
[Debug]: at mapreg.c:163 - INSERT INTO `mapreg`(`varname`,`index`,`value`) VALUES ('$MonsterName$','0','Knight Guardian')

this is the error i got dunno where to find this

advance thnx for the help

[Poseidon]

That is an SQL error, so you need to remove the duplicate mob name from your sql database most likely it will be in mob_db or mob_db2

[AinsLord]

thnx man