<p><b>Query error:</b><br />Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8mb4_unicode_ci,COERCIBLE) for operation '='</p><b>SQL query:</b><br />SELECT cat.cat_type, cat.cat_id, cat.cat_titel, cat.cat_url, prt.cat_url AS prt_url, prt.cat_id AS prt_id, prt.cat_titel AS prt_titel, tgd.usr_id AS tgd_id, tgd.usr_naam AS tgd_naam, gwd.usr_id AS gwd_id, gwd.usr_naam AS gwd_naam, vrt.*
		FROM leg_vertaling vrt
		INNER JOIN leg_categorie cat ON vrt.vrt_categorie = cat.cat_id
		LEFT JOIN leg_categorie prt ON cat.cat_parent = prt.cat_id
		LEFT JOIN leg_user tgd ON vrt.vrt_toegevoegd_id = tgd.usr_id
		LEFT JOIN leg_user gwd ON vrt.vrt_gewijzigd_id = gwd.usr_id
		WHERE vrt.vrt_url = 'hoofdstuk_16_tekst_5b_seneca��������s_verdediging_en_bevel_tot_zijn_dood' AND
		cat.cat_url = 'boek_3_1'
                AND prt.cat_url = 'fortuna'
            
		</p>