world backup didnt give me the world I was in, and instead spawned me in a new one without my progress.

[ToePuncherr]

Firstly, the /locate command in my world was completely defunct, because every time I did for e.g. /locate mansion it would give me a set of coordinates that would take me to the biome the structure was in, however the structure was just not there. I also tried the maps from the cartographers, which also led to empty locations.

I tried to fix this by restoring the backup I saved on this server a few days ago, only for it to completely spawn me in a new world, devoid of all progress me and my friend and made before.

I tried the backup at least 5 times, all with the same result. Nothing of the world I had backed up from before.

I had downloaded my world earlier, and when I tried to upload the world, both methods I tried were useless. When I tried uploading the world through the game using /ul, it said 'Upload failed! Invalid files'. When I tried uploading the world through the server panel, it said 'Unknown Error'. I had done everything correctly, the file was zipped, 289MB so I had to use a google drive link, and nothing worked.

Can anyone please help? And also please tell me how to reupload my world because my backup is goddamn useless. 

[MrTibo]

For world files 100-500MB it's best to use Dropbox with the /ul command, and making sure ?dl=1 at the end of the share url

Did you change the level name setting by any chance? You can check the worlds you have installed on the server either via the file manager or /worlds, and look around if one of them is your world