@aris_kall 

Hi, 
You can refer to the link below to troubleshoot if the SD card does not work properly on the Tapo Camera.
What should I do if the SD card doesn’t work properly on my camera?
 

If the problem remains, please help confirm the following information for further analysis.
1. What's the model number, capacity, and format of the SD card?

2. Please refer to the link below to verify if the SD card is fake, and please send me a picture of the test result on the H2testw tool.
How to Verify Fake Micro SD Cards

3. Please send me a picture of the error message displayed on the Tapo app about the SD card.

4. What's the model number and OS version of your phone? And what's the version of the Tapo app.

Have a nice day!