Your adapter is not stable for Bluetooth Passthrough and probably stopped responding. If it's removable, disconnect it and reboot your computer. If it's internal (e.g. WiFi Combo card), try restarting the computer, if it still doesn't respond, completely turn it off (cut its power source, wait some seconds, then turn it on again). If you're on Windows, you can also try rolling back to the default MS Bluetooth Stack drivers then reinstalling the WinUSB driver again with Zadig...
Avell A70 MOB: Core i7-11800H, GeForce RTX 3060, 16 GB DDR4-3200, Windows 11 (Insider Preview)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)