I can not backup my database anymore. The server storage is 33%. How can I solve this problem.

Database backup error: [('/var/lib/odoo/.local/share/Odoo/filestore/**v4/97/971121fb7da4548eb1f4c50ad3a8157758c58a8e', '/tmp/tmpf73wmwyw/filestore/97/971121fb7da4548eb1f4c50ad3a8157758c58a8e', '[Errno 28] No space left on device'), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/97/97d1adca25a538c500326c7eb89361d529e7f8f4', '/tmp/tmpf73wmwyw/filestore/97/97d1adca25a538c500326c7eb89361d529e7f8f4', '[Errno 28] No space left on device'), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/0e', '/tmp/tmpf73wmwyw/filestore/0e', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/0e'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/25', '/tmp/tmpf73wmwyw/filestore/25', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/25'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/c1', '/tmp/tmpf73wmwyw/filestore/c1', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/c1'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/cb', '/tmp/tmpf73wmwyw/filestore/cb', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/cb'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/0c', '/tmp/tmpf73wmwyw/filestore/0c', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/0c'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/d3', '/tmp/tmpf73wmwyw/filestore/d3', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/d3'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/34', '/tmp/tmpf73wmwyw/filestore/34', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/34'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/8e', '/tmp/tmpf73wmwyw/filestore/8e', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/8e'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/1c', '/tmp/tmpf73wmwyw/filestore/1c', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/1c'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/f1', '/tmp/tmpf73wmwyw/filestore/f1', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/f1'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/f4', '/tmp/tmpf73wmwyw/filestore/f4', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/f4'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/86', '/tmp/tmpf73wmwyw/filestore/86', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/86'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/a0', '/tmp/tmpf73wmwyw/filestore/a0', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/a0'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/f5', '/tmp/tmpf73wmwyw/filestore/f5', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/f5'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/32', '/tmp/tmpf73wmwyw/filestore/32', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/32'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/c4', '/tmp/tmpf73wmwyw/filestore/c4', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/c4'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/ad', '/tmp/tmpf73wmwyw/filestore/ad', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/ad'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/3f', '/tmp/tmpf73wmwyw/filestore/3f', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/3f'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/67', '/tmp/tmpf73wmwyw/filestore/67', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/67'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/0f', '/tmp/tmpf73wmwyw/filestore/0f', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/0f'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/96', '/tmp/tmpf73wmwyw/filestore/96', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/96'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/18', '/tmp/tmpf73wmwyw/filestore/18', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/18'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/cd', '/tmp/tmpf73wmwyw/filestore/cd', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/cd'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/a8', '/tmp/tmpf73wmwyw/filestore/a8', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/a8'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/84', '/tmp/tmpf73wmwyw/filestore/84', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/84'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/d8', '/tmp/tmpf73wmwyw/filestore/d8', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/d8'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/ec', '/tmp/tmpf73wmwyw/filestore/ec', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/ec'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/57', '/tmp/tmpf73wmwyw/filestore/57', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/57'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/9d', '/tmp/tmpf73wmwyw/filestore/9d', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/9d'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/8f', '/tmp/tmpf73wmwyw/filestore/8f', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/8f'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/d0', '/tmp/tmpf73wmwyw/filestore/d0', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/d0'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/90', '/tmp/tmpf73wmwyw/filestore/90', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/90'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/b7', '/tmp/tmpf73wmwyw/filestore/b7', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/b7'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/d9', '/tmp/tmpf73wmwyw/filestore/d9', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/d9'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/93', '/tmp/tmpf73wmwyw/filestore/93', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/93'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/cc', '/tmp/tmpf73wmwyw/filestore/cc', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/cc'"), ('/var/lib/odoo/.local/share/Odoo/filestore/**v4/43', '/tmp/tmpf73wmwyw/filestore/43', "[Errno 28] No space left on device: '/tmp/tmpf73wmwyw/filestore/43'")]