so its running. if no firewall blocking the connection to the web server, most probably its clientside.
what is your sclientinfo ? can you paste without the IP/domain ?
use latest git rathena, doesnt need to use any db number or something.
just make sure define the correct clientdate in packets.hpp that being used at your client.
original npc isnt found. means you have npc that asked for duplication, but the original npc isnt there.
For example maybe you can check healer scripts with its duplicate.
I think your error is about the instance create part. try to check is it really readed at your instance db.
that is RO client. what it needs is the client .EXE with that date which is 20220602 and above. And for sure you need higher RO client too to support that EXE.
Note: The new skills of Dragon Knight (Dragonic Breath), Biolo (Explosive Powder, Mayhemic Thorns), Meister (Mighty Smash, Spark Blaster, Triple Laser) need a client 20220602+.
u said u are using 20180620 client.
So make sure packets.hpp clientdate are correct.
and you type above '20180530' which isnt the same as it should be.
If you already change clientdate in packets.hpp,
./configure only shouldnt give any issue.
if (countitem(512) > 5) {bonus bAllStats,1;}
Something like this, but most probably it wont be updated then the item is consumed/trade ASAP. take effect when itemdb is reloaded or character is relogged.