error, cannot be displayed replys :(

[blind564]

i have a question, in my forum on some post, the messages cannot be displayed, for example if i see  a post and i want to put a reply some times this reply cannot be displayed only displayed the seccion where the  must be displayed the reply.
somebody  know why appear this error?

i just  update the version of smf to 2 rc5
and then i changed the theme.

i have theme skm_light

[Robert.]

Any errors in your errorlog?

[CapadY]

Smae problem with SMF Core theme ?