How Possible Can This Be Corrected?

Hello everyone,

Recently I have seen series of an issue on my cpanel which actually lead to having some errors from both error log on cpanel and others from public_html. Please kindly help me through with necessary suggestions of how to correct these anomalies.

Below are a sample of errors I'm having; mainly from Php.

Error log on cpanel

[Mon Dec 18 08:36:31.038263 2017] [:error] [pid 750091:tid 139621535053568] (12)Cannot allocate memory: [client 197.211.60.53:44848] couldn't create child process: /opt/suphp/sbin/suphp for /home/techmkqd/public_html/wp-admin/admin-ajax.php, referer: https://dailytechhub.com/infinix-zero-5-stylish-powerful-phone/
[Mon Dec 18 08:36:31.036524 2017] [:error] [pid 750091:tid 139621367215872] (12)Cannot allocate memory: [client 197.211.60.53:44892] couldn't create child process: /opt/suphp/sbin/suphp for /home/techmkqd/public_html/index.php, referer: https://dailytechhub.com/infinix-zero-5-stylish-powerful-phone/
[Mon Dec 18 08:36:31.035799 2017] [:error] [pid 750091:tid 139621367215872] (12)Cannot allocate memory: [client 197.211.60.53:44892] couldn't create child process: /opt/suphp/sbin/suphp for /home/techmkqd/public_html/wp-admin/admin-ajax.php, referer: https://dailytechhub.com/infinix-zero-5-stylish-powerful-phone/

My .User.ini Settings

post_max_size = 64M
max_input_vars = 3000
max_execution_time = 180
memory_limit = 512M
upload_max_filesize = 65M
max_input_time = 90
display_errors = Off
allow_url_fopen =ON

ERRORS FROM public_html

PHP Notice: Trying to get property of non-object in /home/techmkqd/public_html/wp-content/plugins/WPSocialTrafficPro/socialtrafficpressr.php on line 452

Aq_Resize.process() error: Unable to resize image because image_resize_dimensions() failed


Please kindly help me out with your suggestions and advise.