Good afternoon. I use the asterisk 13 and fop2 2.30.05, the problem is that when in the course of the conference room such as 6666 numbers 6000 (Супермаркет) are no longer displayed participants. The asterisk log contain the next messages:
[2016-03-21 15:59:17] ERROR[12930]: json.c:704 ast_json_vpack: Error building JSON from '{s: s, s: s}': Invalid UTF-8 string.
[2016-03-21 15:59:20] ERROR[12930]: json.c:704 ast_json_vpack: Error building JSON from '{s: s, s: s}': Invalid UTF-8 string.
[2016-03-21 15:59:22] ERROR[12930]: json.c:704 ast_json_vpack: Error building JSON from '{s: s, s: s}': Invalid UTF-8 string.
[2016-03-21 15:59:25] ERROR[12930]: json.c:704 ast_json_vpack: Error building JSON from '{s: s, s: s}': Invalid UTF-8 string.
[2016-03-21 15:59:27] ERROR[12930]: json.c:704 ast_json_vpack: Error building JSON from '{s: s, s: s}': Invalid UTF-8 string.