BibBase: Error retrieving bibtex file.
Request was:
http://https%3A%2F%2Fapi.zotero.org%2Fusers%2F4671851%2Fcollections%2FXXZ2J5VG%2Fitems%3Fkey%3DL89ZjIJ16okbNdo70PCkz3uG%26format%3Dbibtex%26limit%3D100
{
  'User-Agent': 'bibbase',
  Connection: 'keep-alive',
  'Keep-Alive': 'timeout=300, max=1000'
}