Hi, thanks for quick response. I've turned on CRM trace on server. I've got these files:

Where look for any data that will be needed?
I see in the biggest file something like info about uploading errorlog to MS:
[2015-08-18 12:01:17.863] Process: w3wp |Organization:b1a4bbbe-e98f-e411-811a-001b216dc9d1 |Thread: 90 |Category: Application |User: 00000000-0000-0000-0000-000000000000 |Level: Error |ReqId: 884dbe9f-92c4-421d-b0a2-2fbb9805cd6a | ScriptErrorWebService.SendScriptErrorReport ilOffset = 0x24C
>Uploading script error report to Watson reporting site.
><CrmScriptErrorReport>
And then starts some info about bug.
<ScriptErrorDetails>
<Message>error : /%7B635754841700000129%7D/WebResources/msdyn_/ActivityFeeds.Resources.1045.js</Message>
<Line>0</Line>
<URL>/_forms/read/page.aspx?_gridType=2&etc=2&id=%7bAE5924F4-1593-E411-811B-001B216DC9D1%7d&pagemode=iframe&rskey=%7b00000000-0000-0000-00AA-000000666400%7d&theme=Outlook15White</URL>
<PageURL>/_forms/read/page.aspx?_gridType=2&etc=2&id=%7bAE5924F4-1593-E411-811B-001B216DC9D1%7d&pagemode=iframe&rskey=%7b00000000-0000-0000-00AA-000000666400%7d&theme=Outlook15White</PageURL>
<Function>anonymous($p1_0,$p1_1,$p1_2){if($p1_0.readyState&&!IsNull($p1_2)){var$v_6=null;$v_6=this;var$v_7=IsNull($p1_1)?"Error:":$p1_1;if(!IsNull($v_6))$v_7=String.format("{0}:{1}",$p1_1,$v_6.scriptUri.get_path());catchError($v_7,window.location.href,0,true)}}</Function>
<FunctionRaw>function ($p1_0,$p1_1,$p1_2){if($p1_0.readyState&&!IsNull($p1_2)){var $v_6=null;$v_6=this;var $v_7=IsNull($p1_1)?"Error:":$p1_1;if(!IsNull($v_6))$v_7=String.format("{0} : {1}",$p1_1,$v_6.scriptUri.get_path());catchError($v_7,window.location.href,0,true)}}</FunctionRaw>
<CallStack>
<Function>anonymous($p1_0,$p1_1,$p1_2){if($p1_0.readyState&&!IsNull($p1_2)){var$v_6=null;$v_6=this;var$v_7=IsNull($p1_1)?"Error:":$p1_1;if(!IsNull($v_6))$v_7=String.format("{0}:{1}",$p1_1,$v_6.scriptUri.get_path());catchError($v_7,window.location.href,0,true)}}</Function>
<Function>anonymous(b,f){f=f||[],e=!a.memory||[b,f],i=!0,j=!0,m=k||0,k=0,l=c.length;for(;c&&m<l;m++)if(c[m].apply(b,f)===!1&&a.stopOnFalse){e=!0;break}j=!1,c&&(a.once?e===!0?p.disable():(c=[]):d&&d.length&&(e=d.shift(),p.fireWith(e[0],e[1])))}</Function>
<Function>anonymous(b,c){d&&(j?a.once||d.push([b,c]):(!a.once||!e)&&o(b,c));returnthis}</Function>
<Function>w(a,c,l,m)</Function>
<Function>anonymous(a,e){varj,k,l,m,n;try{if(d&&(e||h.readyState===4)){d=b,i&&(h.onreadystatechange=f.noop,ce&&deletecg[i]);if(e)h.readyState!==4&&h.abort();else{j=h.status,l=h.getAllResponseHeaders(),m={},n=h.responseXML,n&&n.documentElement&&(m.xml=n);try{m.text=h.responseText}catch(a){}try{k=h.statusText}catch(o){k=""}!j&&c.isLocal&&!c.crossDomain?(j=m.text?200:404):j===1223&&(j=204)}}}catch(p){e||g(-1,p)}m&&g(j,k,m,l)}</Function>
</CallStack>
</ScriptErrorDetails>