Error in site

I have website Phone Detective <http://www.phonedetectivetech.com/> which
is showing 22 errors but my programmer has left the job so its very
difficult for me to edit it, is there any option to solve this problem.

i am also seeing errors in my other site too

Whatsapp Status <http://www.sparrowsurf.com/>
Whatsapp Spy Android <http://www.whatsappspyandroid.com/>


http://www.whatsappspyandroid.com/
http://www.sparrowsurf.com/
http://www.phonedetectivetech.com/

Thanks

Tara