Think about to fix the issues found by adapter checker

[ioBrokerChecker]

I am an automatic service that looks for possible errors in ioBroker and creates an issue for it. The link below leads directly to the test:

https://adapter-check.iobroker.in/?q=https://raw.githubusercontent.com/Omega236/ioBroker.virtualpowermeter

• [E144] common.installedFrom field found in io-package.json. Must be removed.
• [E152] No common.dataSource found in io-package.json
• [E701] No actual year found in LICENSE. Please add "Copyright (c) 2021 Lutz Sebastian general.of.omega@googlemail.com" at the start of LICENSE

I have also found warnings that may be fixed if possible.

• [W505] setTimeout found in "main.js", but no clearTimeout detected

Thanks,
your automatic adapter checker.

P.S.: There is a community in Github, which supports the maintenance and further development of adapters. There you will find many experienced developers who are always ready to assist anyone. New developers are always welcome there. For more informations visit: https://github.com/iobroker-community-adapters/info