Wrong world spawn

[DEFECTIVE_COAT]

After logging back in to my server earlier, I spawned in a different world with reset achievements, inventory and crafting book. Fearing something had been overwritten, I restored my save from the night before. After logging in again I was placed in a 3rd world with everything reset again. Then I discovered the /world command and was able to go back to my original world, albeit with my inventory still gone. Now when I die or log in to the serer I still spawn in that 3rd world and lose my inventory, and was wondering how to fix it? I never installed any mods or plugins, and the only settings I altered were "world name" and "server visibility." When I do /worlds, there are 2 listed. "world," the correct one, along with its Nether and End worlds, and "CRAB STORE," but it's missing the Nether and End worlds and when I click on it it gives the text "That world does not exist!" I'm not sure if any of that's relevant, but I just need to find out how fix spawn to be in the correct world. Please let me know if you need any more details

Edited March 17, 2021 by DEFECTIVE_COAT

[MrTibo]

Playerdata is saved in the world you choose under Level name, change that setting back to the name of your original world and restart, then you should have your stuff back