Error reported on page /testimonials.php

MySQL error: 145 - Table './medib_livestore/whos_online' is marked as crashed and should be repaired

delete from whos_online where time_last_click < '1406900249'

[TEP STOP]
Array
(
    [0] => Array
        (
            [file] => /home/medib/public_html/includes/functions/database.php
            [line] => 63
            [function] => tep_db_error
            [args] => Array
                (
                    [0] => delete from whos_online where time_last_click < '1406900249'
                    [1] => 145
                    [2] => Table './medib_livestore/whos_online' is marked as crashed and should be repaired
                )

        )

    [1] => Array
        (
            [file] => /home/medib/public_html/includes/functions/whos_online.php
            [line] => 36
            [function] => tep_db_query
            [args] => Array
                (
                    [0] => delete from whos_online where time_last_click < '1406900249'
                )

        )

    [2] => Array
        (
            [file] => /home/medib/public_html/includes/application_top.php
            [line] => 532
            [function] => tep_update_whos_online
            [args] => Array
                (
                )

        )

    [3] => Array
        (
            [file] => /home/medib/public_html/testimonials.php
            [line] => 13
            [args] => Array
                (
                    [0] => /home/medib/public_html/includes/application_top.php
                )

            [function] => require
        )

)
Array
(
    [DOCUMENT_ROOT] => /home/medib/public_html
    [GATEWAY_INTERFACE] => CGI/1.1
    [HTTP_ACCEPT] => text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
    [HTTP_ACCEPT_ENCODING] => x-gzip, gzip, deflate
    [HTTP_ACCEPT_LANGUAGE] => en-us,en-gb,en;q=0.7,*;q=0.3
    [HTTP_HOST] => www.mediband.com
    [HTTP_USER_AGENT] => CCBot/2.0 (http://commoncrawl.org/faq/)
    [PATH] => /bin:/usr/bin
    [QUERY_STRING] => testimonial_id=267
    [REDIRECT_QUERY_STRING] => testimonial_id=267
    [REDIRECT_STATUS] => 200
    [REDIRECT_UNIQUE_ID] => U9ubnbagmscAAFHEDsMAAAAd
    [REDIRECT_URL] => /ts267/Angie/testimonials.html
    [REMOTE_ADDR] => 54.197.215.146
    [REMOTE_PORT] => 45866
    [REQUEST_METHOD] => GET
    [REQUEST_URI] => /ts267/Angie/testimonials.html
    [SCRIPT_FILENAME] => /home/medib/public_html/testimonials.php
    [SCRIPT_NAME] => /testimonials.php
    [SERVER_ADDR] => 182.160.154.201
    [SERVER_ADMIN] => webmaster@mediband.com
    [SERVER_NAME] => www.mediband.com
    [SERVER_PORT] => 80
    [SERVER_PROTOCOL] => HTTP/1.0
    [SERVER_SIGNATURE] => 
Apache/2.2.24 (Unix) mod_ssl/2.2.24 OpenSSL/1.0.0-fips mod_bwlimited/1.4 Server at www.mediband.com Port 80
[SERVER_SOFTWARE] => Apache/2.2.24 (Unix) mod_ssl/2.2.24 OpenSSL/1.0.0-fips mod_bwlimited/1.4 [UNIQUE_ID] => U9ubnbagmscAAFHEDsMAAAAd [PHP_SELF] => /testimonials.php [REQUEST_TIME] => 1406901149 [argv] => Array ( [0] => testimonial_id=267 ) [argc] => 1 )