I had stored my bitcoins in an Electrum wallet before the fork. I have the public key and the private key but not able to redeem BTG

I have tried:

1. Copying private key into coinomi
2. Private Key WIF QR code into coinomi
3. Private key WIF Compressed QR code into coinomi
4. Electrum seed into coinomi 5 .Removed 2 fact auth and encryption from electrum and see the private key

My public key starts with: 36E
My private key starts with: L3BV

I don't know if my address is segwit or non-segwit

Kindly advice on what I should do next

I have searched for this question online and on this website, they say to use

https://bitcoingold.org/

but I see that balance checker tool is no longer available on the website.

Is there anywhere else I can check it?