Is it a good time to buy index fund?

I’m completely new to investing.

I opened an AJ Bell S&S account a few weeks ago.

I spent only £100 on the HSBC Islamic Global Equity Index BC to test out the platform.

https://www.youinvest.co.uk/market-research/FUND:BJLVT85

Is it a good time to invest now? I have approximately £7.5k in cash.

I want something safe so that I don’t lose money (overall) but I’m willing to invest for the long term (10+ years).

Looking forward to replies.