Plugin-(kaswara.zip) not working

Hi,
I have bought the car renting themes and while installing the plugin its gives below error.
and I cannot extract plugin(kaswara.zip) as well, it is showing corrupted
The package could not be installed. PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature
kindly advise ASAP
Thanks

Hi @infobdcr,

Please contact the author of your purchased theme, the theme author will assist you.

How to contact an author to get support or for any technical query:

Thanks

how to contact author?
thnaks

please check the link I provided in above reply.