[Koha] link bibs to autorities error

[Arayik Manukyan]

Dear list,

We tried to link bibs to authorities  in Koha 3.22.13 and have got such 
error

Any  suggestions?

Thanks,

Arayik

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<record
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://www.loc.gov/MARC21/slim 
http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd"
     xmlns="http://www.loc.gov/MARC21/slim">

   <leader>00576nam a2200157 u 4500</leader>
   <controlfield tag="001">000526469</controlfield>
   <controlfield tag="005">20170208160921.0</controlfield>
   <controlfield tag="008">070316s1931    ai | 
|||||||||||||arm|d</controlfield>
   <datafield tag="041" ind1="0" ind2=" ">
     <subfield code="a">arm</subfield>
   </datafield>
   <datafield tag="100" ind1="1" ind2=" ">
     <subfield code="a">т©у╦ж┌ж─у©у╚у╞у╣у║уІ, у█у©у╔ж┐у║уІ 
у└у╚у╟ж─у║уІу╚,</subfield>
     <subfield code="d">1908-1986</subfield>
   </datafield>
   <datafield tag="245" ind1="1" ind2="0">
     <subfield code="a">т©у╦уЄу╣у╔ж─у╚у©уЄу╚у╦ж┌у╘у╣у╦ж┌уІу╗ 
у║уЇуІу║уІу║ж│у║уІу╚ ж├ж─у╦уІу©у╦ж┌уЄ /</subfield>
     <subfield code="c">у█. т©у╦ж┌ж─у©у╚у╞у╣у║уІ.</subfield>
   </datafield>
   <datafield tag="260" ind1=" " ind2=" ">
     <subfield code="a">у┘у╔ж─ж┤у║уІ :</subfield>
     <subfield code="b">у┼у╔у©у╟ж─у║у©,</subfield>
     <subfield code="c">1931.</subfield>
   </datafield>
   <datafield tag="300" ind1=" " ind2=" ">
     <subfield code="a">46 уїу╩ ;</subfield>
     <subfield code="c">17 уҐуЄ.</subfield>
   </datafield>
   <datafield tag="440" ind1=" " ind2="0">
     <subfield code="a">т╠уЇуІу║уІу║ж│у║уІу╚ у╞у║уЄу╨у║уІу╚у║</subfield>
   </datafield>
   <datafield tag="650" ind1="1" ind2="4">
     <subfield code="a">у▐уІу©у╔уҐу║у╞у║уІ у╚ж─у║у╬у╚уЁу║у╞</subfield>
   </datafield>
   <datafield tag="999" ind1=" " ind2=" ">
     <subfield code="c">436808</subfield>
     <subfield code="d">436808</subfield>
   </datafield>
</record>
Can't call method "as_formatted" on an undefined value at 
/usr/share/koha/lib/C4/Biblio.pm line 311.
DBD::mysql::db DESTROY failed: MySQL server has gone away during global 
destruction.

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