Can't set lines to anything

[EarthAgar]

Describe your problem

I can't use the set line %number% of %path% expression

Versions

Skript: 2.5.3 (Also tested on 2.6beta-2)
Server: git-Paper-774 (MC: 1.16.5)
Skent: 3.0

Code

command /line <text>:
	trigger:
		if file path "plugins/Database/test.txt" isn't available:
			create file path "plugins/Database/test.txt":
				broadcast "file created"
				set line 1 of file path "plugins/Database/test.txt" to "%arg 1%"
		else:
			broadcast "file exists"
			set line 1 of file path "plugins/Database/test.txt" to "%arg 1%"

Error

https://paste.helpch.at/osihujupom.md

[Olyno]

Fixed in 3.1.0