You're missing libvpx.so.6, so maybe a package got removed or its version changed. Try:
sh
tce-load -wi libvpx
or if you have another version:
sh
tce-load -wi libvpx-dev
TinyCore sometimes loses dependencies after a reboot, especially if something isn't added to onboot.lst. You can check what's installed:
sh
tce-status -i | grep vpx
Check it and let us know.