Data disappeared when transferring data from an old device to a new one

I bought myself a new device and wanted to transfer it to I bought myself a new device and wanted to transfer data from Minecraft to it, everything is fine, I logged into my account when everything was downloaded for me there was nothing, all my worlds and textures were gone and the cloaks that I had been opening for a long time (twitch, tiktok cloak, MCC ) Absolutely everything is gone, help me get it all back.

Thanks in advance for your answer.