I think this in your log might relate.
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,142 | 00.00.00.048(005): WASAPI: Scanning U28E590 (NVIDIA High Definition Audio) for formats
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,142 | 00.00.00.126(000): WASAPI: Device: U28E590 (NVIDIA High Definition Audio). Scan time 78. Formats = 1 15 formats scanned
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,142 | 00.00.00.127(001): WASAPI: Scanning Lautsprecher (7- Focusrite USB Audio) for formats
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,142 | 00.00.00.135(000): WASAPI: Device: Lautsprecher (7- Focusrite USB Audio). Scan time 7. Formats = 1 15 formats scanned
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,142 | 00.00.00.135(000): WASAPI: Scanning Realtek Digital Output (Realtek High Definition Audio) for formats
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,142 | 00.00.00.148(001): WASAPI: Device: Realtek Digital Output (Realtek High Definition Audio). Scan time 12. Formats = 8 8 formats scanned
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,142 | 00.00.00.148(000): WASAPI: Scanning PHL 241P6V (NVIDIA High Definition Audio) for formats
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,142 | 00.00.00.203(000): WASAPI: Device: PHL 241P6V (NVIDIA High Definition Audio). Scan time 55. Formats = 1 15 formats scanned
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,142 | 00.00.00.204(001): WASAPI: Scanning Realtek Digital Output(Optical) (Realtek High Definition Audio) for formats
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,344 | 00.00.00.216(000): WASAPI: Device: Realtek Digital Output(Optical) (Realtek High Definition Audio). Scan time 12. Formats = 8 8 formats scanned
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,344 | 00.00.00.221(005): WASAPI: Scanning Analogue 1 + 2 (7- Focusrite USB Audio) for formats
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,344 | 00.00.00.229(000): WASAPI: Device: Analogue 1 + 2 (7- Focusrite USB Audio). Scan time 7. Formats = 1 15 formats scanned
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,344 | 00.00.00.267(004): WASAPI: switching to AUTO because exclusive mode not allowed
[0x00002948] | Fairlight | INFO | 2022-05-18 13:31:18,439 | 00.00.00.500(000): Running Fairlight (a0e86b723b34b76661b6f49ab627ef39b937b85f)
[0x00002948] | FairlightLoader | INFO | 2022-05-18 13:31:18,439 | Fairlight lib initialized in 621 ms.
[0x00002638] | Fairlight | INFO | 2022-05-18 13:31:18,544 | 00.00.00.451(000): WASAPI: switching to AUTO because exclusive mode not allowed
I'm not sure why Resovle would be trying to connect using WASAPI when you've told it to use ASIO, but I've had the same problems where when Resolve starts up, it tries to hog onto all audio interfaces, even though you've selected it to use just ASIO of the one device and it seems to confuse itself (even connects to something you've never told it too, which is really weird)
Try disconnecting the focusrite, set Audio I/O to system, re-start Resolve, then when you get the projects screen connect the Focusrite, press [ctrl+,] and then select ASIO Focusrite.
Also check both boxes under 'Exlusive Mode' in Sound Settings for the Focusrite. Make sure Windows System isn't connecting to Focusrite, use the onboard audio instead for that.
Intel i7, 32GB LPDDR4, NVIDIA GTX 1650 6GB, Windows 10, Davinci Resolve Studio 18.0.4