Hello @Shayla08 

If smart plug has no power, try factor resetting the smart plug as instruction here.  Try a different wall outlet and see if the plug gets power. 
https://www.tp-link.com/support/faq/2648/

The warranty policy varies in different region or areas, it is recommended reaching local customer service directly to check warranty. 

When use outdoor plug, kindly pay attention to how it replaced and capped the cover when not in use. 

Hope this helps!