If the issue is not reproducible without plugins:
[Server thread/CRITICAL]: TypeError: "Argument 1 passed to pocketmine\utils\BinaryStream::putLFloat() must be of the type float, string given, called in C:\Users\PC\Desktop\GameCraftPE\Skywars\src\pocketmine\network\mcpe\protocol\DataPacket.php on line 354" (EXCEPTION) in "src/pocketmine/utils/BinaryStream" at line 188
sorry i forgot to paste the error ;)
you also didn't answer any part of the Plugins section.
This is not a plugin development support forum.
Also use the handy edit button instead of creating new issues.
Most helpful comment
This is not a plugin development support forum.