Kindly take a look at the following link for instructions on how to add a website to the whitelist in your Bitdefender product, so it does not get blocked while you surf:

https://www.bitdefender.com/consumer/support/answer/1519/

To add an exclusion in the Bitdefender product and prevent a file or folder from being scanned, kindly follow the procedure below.

1) Temporarily disable Bitdefender Protection: https://www.bitdefender.com/consumer/support/answer/28557/

2) Set exclusions in Bitdefender Antivirus: https://www.bitdefender.com/consumer/support/answer/13427/

3) Set exclusions in Bitdefender Advanced Threat Defense: https://www.bitdefender.com/consumer/support/answer/2393/

4) Re-enable real-time protection in Bitdefender.

Regards