buffer.js:977 throw new RangeError('Index out of range');

i used this code: https://github.com/rm2kdev/Mmorpg-Server

and the last thing i remember i did is using this: https://ideaserver.pro/

and since then i keep recieveing this error:

buffer.js:977
throw new RangeError('Index out of range');

RangeError: Index out of range
at checkOffset (buffer.js:977:11)
at Buffer.readUInt8 (buffer.js:1015:5)
at Parser.compiled (evalmachine.<anonymous>:8:14)
at Parser.parse (C:\Users\n\Desktop\Mmorpg-Server-master2\node_modules\binary-parser\lib\binary_parser.js:379:15)
at Object.interpret (C:\Users\n\Desktop\Mmorpg-Server-master2\packet.js:67:42)
at Object.parse (C:\Users\n\Desktop\Mmorpg-Server-master2\packet.js:57:18)
at Socket.data (C:\Users\n\Desktop\Mmorpg-Server-master2\client.js:49:16)
at emitOne (events.js:116:13)
at Socket.emit (events.js:211:7)
at addChunk (_stream_readable.js:263:12)
at readableAddChunk (_stream_readable.js:250:11)
at Socket.Readable.push (_stream_readable.js:208:10)
at TCP.onread (net.js:597:20)

i tried reinstalling webstorm but it deosnt help