OTClient Issues - Fixing Invalid Item IDs and Creature Sync Problems

[opsdan]

Hi everyone. I’m creating an TFS 1.2 (nostalrius 772), and using the otclientv8 classic UI for access. When logging in with two different clients (admin and any sample character), I encounter two errors in the client’s terminal.

1. The first error occurs with the simple login, where the character that logged in becomes invisible to the already open client. Item ID 24833 does not exist in items.srv.

ERROR: ProtocolGame parse message exception (56 bytes, 44 unread, last opcode is 0x6a (106), prev opcode is 0xffffffff (-1)): unable to create item with invalid id 24833
Packet has been saved to packet.log, you can use it to find what went wrong. (Protocol: 772)

2. The second error happens when the character who logged in moves:

ERROR: no thing at pos:32369 32241 7, stackpos:1
at:
[C++]: ?getMappedThing@ProtocolGame@@QAE?AV?$shared_object_ptr@VThing@@@stdext@@ABV?$shared_object_ptr@VInputMessage@@@3@@Z
ERROR: no creature found to move
at:
[C++]: ?parseCreatureMove@ProtocolGame@@AAEXABV?$shared_object_ptr@VInputMessage@@@stdext@@@Z

How can I fix both errors? Thanks in advance.