Paragraph ended before @xrdef was complete

[steve-humphreys]

Am using the following code but getting the error

Runaway argument?
{Figura@tie 1: @strong {Lord Jonathan Peter Marland decorato dal pres@ETC.
/home/bard/2021/q1/2020-liberta-digitale-agli-studenti.aux:5: Paragraph
ended before @xrdef was complete.
<to be read again>
                   @par
l.5

?

-------- code --------

@set fignm napolitano-assad
@float Figura,napolitano-assad

  @paragraphindent -1
  @center @image{./ideogr/napolitano-assad,12.5cm,,,.png}
  @caption{@strong{Giorgio Napolitano, onorando il Presidente Siriano
Bashar al Assad, con la pi@'u alta onorificenza del paese.}

  @paragraphindent 0
  @flushright
    Label: @t{@value{fignm}}
  @end flushright
  }

@end float