Need Help with used Inodes

Inodes Used 100 % (35610 of 30019)

Need help please. I allready deleted almost everything.
just have one simple wordpress installed.
But cpanel keep saying
Inodes Used 100 % (35610 of 30019)

what can i do?

Please note that the inode counter does not update instantly, the counter is only checked once every few hours or so.