500 Internal Server Error

/shop/art_list.jsp:

Exception thrown on line '1549' from page 'C:\\Programme\\JRun31\\servers\\itx1\\itx1-app\\shop\\art_list.jsp'.
java.sql.SQLException: Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '='
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1072)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3563)
	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3495)
	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1959)
	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2113)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2687)
	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2616)
	at com.mysql.jdbc.StatementImpl.executeQuery(StatementImpl.java:1464)
	at de.internolix.shop.ShopDB.newQuery(ShopDB.java:101)
	at de.internolix.shop.ShopDB.<init>(ShopDB.java:52)
	at jrun__shop__art_list2ejsp12._jspService(jrun__shop__art_list2ejsp12.java:1758)
	at de.internolix.shop.ShopServlet.service(ShopServlet.java:523)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:228)
	at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java:196)
	at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1417)
	at allaire.jrun.session.JRunSessionService.service(JRunSessionService.java:1106)
	at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java:1271)
	at allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java:89)
	at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1557)
	at allaire.jrun.servlet.JRunSE.service(JRunSE.java:1547)
	at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java:364)
	at allaire.jrun.jrpp.ProxyEndpoint.run(ProxyEndpoint.java:388)
	at allaire.jrun.ThreadPool.run(ThreadPool.java:272)
	at allaire.jrun.WorkerThread.run(WorkerThread.java:75)