Объявления о конференциях

Объявления о конференциях    
SQL Error: Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'ssa_rss.id.icont_text' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by at /home/shef/ssa-rss.ru/html/dreamedit/includes/class.Ilines.php line 100
Array
(
    [code] => 1055
    [message] => Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'ssa_rss.id.icont_text' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by
    [query] => SELECT id.icont_text as date,ie.el_id AS ARRAY_KEY, ie.* FROM adm_ilines_element AS ie, adm_ilines_content AS ic INNER JOIN adm_ilines_content AS id ON id.el_id=ic.el_id AND (id.icont_var='date' OR id.icont_var='date2') AND id.icont_text>='2019.03.19' WHERE  ie.itype_id = 5 AND ie.el_id = ic.el_id  AND ic.icont_var  = 'status' AND ic.icont_text <> '' AND ic.icont_text IS NOT NULL GROUP BY ie.el_id ORDER BY id.icont_text   LIMIT 0, 20    
    [context] => /home/shef/ssa-rss.ru/html/dreamedit/includes/class.Ilines.php line 100
)