Prontera Error in Certain Area

[Kwek2809 0]

Hi, 

used the searched function and google but cannot find guide or fix.

I am getting error when walking towards specific area in Prontera
Error: Resource File Loading fail NPC\.spr sprite\npc\.spr
Location: Prontera 181 125
Client 2018-05-30bRagexeRE
Client Folder : 20220721

Tested other maps and this is the only area I am getting this.

Fixed tried check sprite folder and confirm there is a sprite folder even check the data.grf.

Edited August 8, 2025 by Kwek2809
added notes

[Kwek2809 0]

Update:
 

NPC Juno Moster Society is the one that's throwing the Error i think it's using the NPC ID (415) 4_M_CRU_HEAD. change to an NPC ID that is usable.