Openkore.com

By that one, are you referring to this?

#Re:Start
# http://playragnarok.com
[International - iRO: Re:Start]
ip 128.241.92.133
port 6800
version 18
master_version 1
serverType iRO_Restart
addTableFolders iRO/Restart;iRO
serverEncoding Western
charBlockSize 145
pauseCharLogin 1
patchserver ropatch1.gravityus.com
patchpath /repatch
sendCryptKeys 0x223A6BCA, 0x20CA20CA, 0x10CA20CA

[Ragnarok - Re:Start] can't be found in the latest servers.txt

I mean OP selected Re:Start and it works for restart by default, but he changed settings for reasons that cant be explained. If you want to play restart just dl kore and play.