Locked Out

I am having this issue here, when my customer “add to cart” on the product, then it direct to Cart Page. And customer add addition item to the Cart & Checkout, it shown the message “You Have been Locked Out”.

Appreciated your kind assistance on this matter.

The following is the log file;

id               => 6
module           => lockout
type             => action
code             => host-lockout::115.164.81.121
timestamp        => 2021-04-18 13:14:30
init_timestamp   => 2021-04-18 13:14:30
remote_ip        => 115.164.81.121
user_id          => [empty string]
url              => https://fayesmy.com/cart/image/gif;base64,R0lGODlhAQABAIAAAAAAAP/yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
memory_current   => 18828944
memory_peak      => 18854712
data             => Array
    module               => four_oh_four
    host                 => 115.164.81.121
    user_id              => [boolean] false
    username             => [boolean] false
    module_details       => Array
        type     => four_oh_four
        reason   => too many attempts to access a file that does not exist
        label    => 404
        host     => [integer] 5
        period   => [integer] 10
    whitelisted          => [boolean] false
    blacklisted          => [boolean] false
    lockout_type         => four_oh_four
    lockout_start        => 2021-04-18 21:14:30
    lockout_start_gmt    => 2021-04-18 13:14:30
    lockout_context      => O:40:"iThemesSecurity\Lib\Lockout\Host_Context":5:{s:46:"iThemesSecurity\Lib\Lockout\Host_Contexthost";s:14:"115.164.81.121";s:55:"iThemesSecurity\Lib\Lockout\Host_Contextlogin_user_id";N;s:56:"iThemesSecurity\Lib\Lockout\Host_Contextlogin_username";N;s:62:"iThemesSecurity\Lib\Lockout\Host_Contextuser_limit_triggered";b:0;s:51:"iThemesSecurity\Lib\Lockout\Contextlockout_module";s:12:"four_oh_four";}
    lockout_expire       => 2021-04-18 21:29:30
    lockout_expire_gmt   => 2021-04-18 13:29:30
    lockout_host         => 115.164.81.121

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