Parameter 2 to flowplayer3_swftools_flashvars() expected to be a reference

I just installed the current profile. After checking that file paths exist, flv is uploaded OK, player code exists, SWFTools config, modules enabled I still get:

warning: Parameter 2 to flowplayer3_swftools_flashvars() expected to be a reference, value given in ...\includes\module.inc on line 462 & video does not play, or

warning: Parameter 2 to wijering4_swftools_flashvars() expected to be a reference, value given in ...\includes\module.inc on line 462 & video plays.