> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://helpdesk.telegramfxcopier.io/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How to Solve Backtest Initialization Error in MT5

What if you're trying to run a backtest, but you get no output from your data? Yes, it can be a data sync issue, but it can also be caused by other things. This video shows how to solve the oninit or global initialization error problem in MetaTrader 5 backtester.

${frame}[](https://www.youtube.com/embed/-vDP7TL1NVw)