Please make sure that the SD card you are using is in accordance with the specifications of the user manual, please check this below link for the specifications of the SD card.
Please use brand name memory cards that meet these requirements:
• Capacity up to 32GB (FAT32)
1. Please format the memory card first in this camera before use. To keep your
memory card in good condition, reformat it on a regular basis. Reformatting
erases all your content, so please make sure to offload your photos and videos
2. FAT32 format memory card stops recording