Plugin Issue?

For mobile compatability,checked my website in http://validator.w3.org/mobile/ .But it shows so many errors..where i can fix those issues in plugin..

My webiste is fitted for all screen resolutions,but why those error are showing..

I tested my website in http://woorank.com tool,it also showing error for “mobile compatability”

where is the issue in plugin?can you help me regarding this,if anyone knows?

Thanks in advance