It's a matter of the conversion table in the scripts. Since XMM8 is able to import compressed websites (or any other change) this table has to be rebuild new.
But of course in your case it seems as if there is only a missing conversion.
I guess you hvae used the filmaffinity.com_plus script:
So go to line 1955 and add #STARTSUBSTITUTETAGS# in a new line.
// ooooo PLOT - "SINOPSIS"
#PLOT#
#PUT#=#06#
#STARTREADWEB#
#FINDLINE#=<th>SINOPSIS</th>#03##ONERROR#=*STOP*
#READNEXTLINE#
#TAKEWORD#=#06#,#00#,#00#
#CHECKVARIABLE#=#06#
#STARTSUBSTITUTETAGS#
#CLEARTAGS#
#TRIM#
#STRING#=#06#=#06##NEWLINE#
#TAKEPLOT#=#06#
#ENDPLOT#
