Russian letters in group or folder names marks as question signs

When I try to add new group in groupJive or new folder in cb gallery or any new item in add-ons I see a question signs instead of letters. If I try to add new record in profileBlog or profileWall it shows an error "Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '=' SQL=SELECT COUNT(*) FROM poster_comprofiler_plug_profilebook WHERE postername = 'poster' AND posteremail = 'poster@mail.ru' AND postertitle = 'аыпаыпаы' AND postercomment = 'ыапаы' AND posterid = 459 AND userid = 459"

evgentret wrote: When I try to add new group in groupJive or new folder in cb gallery or any new item in add-ons I see a question signs instead of letters. If I try to add new record in profileBlog or profileWall it shows an error "Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '=' SQL=SELECT COUNT(*) FROM poster_comprofiler_plug_profilebook WHERE postername = 'poster' AND posteremail = 'poster@mail.ru' AND postertitle = 'аыпаыпаы' AND postercomment = 'ыапаы' AND posterid = 459 AND userid = 459"

The message is pretty clear to me.

Some of your database tables appear to have wrong collation (latin1_swedish_ci !).

Please use phpmyadmin to inspect and make changes to all such latin1_swedish_ci collations to the correct for your use case utf_8_general_ci setting.

Well... and a lot of TEXT and VARCHAR in every table that also has a latin1_swedish_ci collation. An hour of work. I'll try to fix it, but one more question: what about updates? Will this collation returns?

Table and column collation is based entirely off your database configuration. Contact your host and have them change the default collation (you maybe able to do this from phpmyadmin or your host panel). Joomla and CB don't set the collation (unless it's missing entirely).