MacBook air 2017 freezing issue

Dear Team,

I have a MacBook air 2017. when it goes into a sleeping mood it's freezing. i am unable to logging again. when I restart the MacBook air 2017 shows the error " support.apple.com mac startup " 2 or 3 times restart then turn its on again .

Note:

1:- I reinstall OS 4 times update to but issue the same.

2:- try all matured Reset PRAM/NVRAM & Reset your Mac’s SMC

Please help me out what i can do

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Restart your system and press the D key to enter into the onboard diagnostics lets see if an error pop's, let us know what it is.

Reference: Mac startup key combinations

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