There is a problem while importing flux ratios. If a file with a wrong syntax is selected in the "Select Flux Ratio Constraints File" field an error is thrown.
See also https://sourceforge.net/p/optflux/optfluxbugreporter/1426/
Anonymous
You seem to have CSS turned off. Please don't fill out this field.
See also https://sourceforge.net/p/optflux/optfluxbugreporter/1426/