Hmm, the error seems to be in the ID3 tags (?) -  I presume there is a problem with the Russian character set?
[INF] Total disk usage: 116608.28 MB
[INF] Preparing for full update
[INF] Processing /usr/local/centovacast/var/vhosts/rudder/var/spool/media/General_6/I-47_12) Schola Cantorum of Saint Peter the Apostle - Carpatho-rusyn Plainchant ~ St, Symeon’s Prayer and Trisagion .mp3
[INF] Processing /usr/local/centovacast/var/vhosts/rudder/var/spool/media/MR J25 Byz Chant Arabic /02 Troparion Of Pentacost.mp3
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Error:   Could not execute query
File:   /usr/local/centovacast/system/class_TrackManager.php:599
Query:   SELECT ident,id FROM track_artists WHERE ident IN ("ХорМосковскогоХрамавчестьиконы"ВсехСкорбящихРадость"наБольшойОрдынкеп/уНиколаяМАТВЕЕВА","chamberchoirlegeartisborisabalyan","choiraxios") AND accountid=36
Reason:   You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ВсехСкорбящихРадость"наБольшойОрдынкеп/уН' at line 1
Call:   $SQL->select_query()
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