It seems ASAS-SN has changed its format for precompiled data files (photometry db).
A header in the form "hjd,camera,filter,mag,mag err,flux (mJy),flux err" is expected (with respective data columns); now the files have the following data columns:
hjd,camera,mag,mag_err,flux,flux_err
See https://www.aavso.org/4-bug-reports-and-features-suggestions#comment-162737
It seems ASAS-SN has changed its format for precompiled data files (photometry db). A header in the form "hjd,camera,filter,mag,mag err,flux (mJy),flux err" is expected (with respective data columns); now the files have the following data columns: hjd,camera,mag,mag_err,flux,flux_err