[Plugin: envira-gallery-lite] Exceeding upload file size throws error

I’ve just installed envira-gallery-lite and I get this error when I upload images larger than 1 MB (which is the limit):

ReferenceError: fileObj is not defined
wpFileError(fileObj, pluploadL10n.default_error);

More specifically, it seems the erro is in line 612:

default:
  wpFileError(fileObj, pluploadL10n.default_error);