Sharepoint access error

I cannot access sharepoint at all and get the following error thread at end of my sharepoint site address in browser.

Other applications seem to work fine.

Any advise please?

_layouts/15/error.aspx?ErrorCorrelationId=69bc38a1-30bc-9000-3994-2eb3c977216f&ErrorText=Can%27t%20load%20the%20application%20on%20this%20page.%20Use%20the%20browser%20Back%20button%20to%20retry.%20If%20the%20problem%20persists%2C%20contact%20the%20administrator%20of%20the%20site%20and%20give%20them%20the%20information%20in%20Technical%20Details.&ErrorDetails=Error&ErrorCategory=spfx&Workload=SPHomeNext&Name=SpfxLoad