GZIP Compression Not Working For WordPress Site

When I test my site on google page speed, It’s looking horrible. I’m getting some compression issues.

Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yK/r/XVnmkWxbmyb.js could save 152KiB (74% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yz/r/7emJbLsMYck.js could save 123.6KiB (72% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yY/r/MYnSaHkqljr.js could save 121.7KiB (70% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yh/r/Sst4Eu6wCBO.js could save 69.3KiB (70% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/y6/r/luizkbRWOQS.js could save 24.2KiB (67% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yI/r/oDzewPwhRt1.js could save 21.7KiB (74% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yP/r/gcdIMTVPpBq.css could save 17.3KiB (77% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yf/r/nrh6Sehx1Iz.css could save 15.4KiB (73% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yV/r/1pZAFn_KQPn.css could save 14.2KiB (74% reduction).
Compressing http://www.advancebestmaid.com.sg/ could save 12.7KiB (72% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/ya/r/acNHHHLf-Ph.js could save 11.3KiB (69% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yR/r/qGNhIQHDeK2.js could save 9.3KiB (63% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yr/r/V2fXuYrZ-4H.css could save 3.6KiB (71% reduction).
Compressing https://static.xx.fbcdn.net/rsrc.php/v2/yY/r/Uj-Y3GNRxq1.js could save 3.3KiB (59% reduction).

I already checked with my server to make sure that, GZIP is enabled. And I’m using Yoast SEO plugin to enable HTTP (gzip) compression on my site.

I cannot understand why the compression not working. Please help me guys.

https://wordpress.org/plugins/wordpress-seo/