After beginning to kern a font, I have begun receiving error messages in the output window when I try to test install or generate an otf. This is the message:

makeotf Report

makeotf [Note] Converting source font ‘/font.otf’ to temporary Unix Type1 font file ‘/font.otf.tmp’.
makeotf [Note] setting the DONT_USE_WIN_LINE_METRICS OS/2 fsSelection bit 7 from fontinfo keyword.
makeotf [Note] setting the WEIGHT_WIDTH_SLOPE_ONLY OS/2 fsSelection bit 8 from fontinfo keyword.
makeotf [Note] setting the OBLIQUE OS/2 fsSelection bit 9 from fontinfo keyword.
makeotf [Note] Writing options file /current.fpr
makeotf [NOTE] Running makeotfexe with commands:
makeotfexe -f font.otf.tmp -o Riza.otf -ff features -gf glyphOrder -mf menuname -r
makeotfexe [WARNING] [internal] Feature block seen before any language system statement. You should place languagesystem statements before any feature definition [features 3]
syntax error at “left” missing “=” [features 4]
makeotfexe [FATAL] aborting because of errors

makeotf [Error] Failed to build output font file Riza.otf.

I don’t know any coding so I (a) haven’t written any for the font and (b) don’t know what to make of this message.