Hi,
For DailyMotion videos not playing in the mobile device, follow the below steps,
1) Go to the file path wp-content/plugins/contus-video-gallery/front/views/videodetailpage.php.
2) And find the below code, take backup of the file before modifying it.
$output='<script src="https://api.dmcdn.net/all.js"></script><div id="player"></div><script>var player = DM.player(document.getElementById("player"),{video: "'.$split_id[0].'",width: "100%",params: {html: 0,wmode: "opaque"},events: {playing: function(){onPlayerStateChange();}}});var done = false;function onPlayerStateChange(){if (!done) {currentVideoP('.$videoId.');done = true;}}</script>';
replace the above code as below,
$output='<script src="https://api.dmcdn.net/all.js"></script><div id="player"></div><script>var player = DM.player(document.getElementById("player"),{video: "'.$split_id[0].'",width: "100%",events: {playing: function(){onPlayerStateChange();}}});var done = false;function onPlayerStateChange(){if (!done) {currentVideoP('.$videoId.');done = true;}}</script>';