Please help!!

below is the most recent log and attached free shipping setting page FYI.
THANKS!

2014-06-24 20:44:41 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.image.categories.78.1_0.1403727525 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-24 20:44:41 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.image.categories.81.1_0.1403727525 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-24 20:44:41 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.image.products.121.1_0.1403727444 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-24 20:44:41 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.image.categories.47.1_0.1403727525 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-24 20:44:41 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.image.products.125.1_0.1403727456 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-24 20:44:41 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.image.products.123.1_0.1403727444 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-24 20:44:41 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.image.categories.44.1_0.1403727525 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-24 20:44:41 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.image.products.135.1_0.1403728915 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-24 20:44:41 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.100433.1403729081 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-26 9:11:30 - database error:  AbanteCart core v.1.1.8 Error: MySQL server has gone away<br />Error No: 2006<br />SELECT DISTINCT
                    e.extension_id,
                      e.type,
                      e.key,
                      e.category,
                      e.priority,
                      e.version,
                      e.license_key,
                      e.date_installed,
                      e.update_date,
                      e.create_date,
                    s.store_id,
                    st.alias as store_name,
                    s.value as status
            FROM ab_extensions e
            LEFT JOIN ab_settings s ON ( TRIM(s.`group`) = TRIM(e.`key`) AND TRIM(s.`key`) = CONCAT(TRIM(e.`key`),'_status') )
            LEFT JOIN ab_stores st ON st.store_id = s.store_id
            WHERE e.`type`  IN ('extensions', 'payment', 'shipping', 'template', 'language') in <b>/home/koalafan/public_html/cart/core/database/mysql.php</b> on line <b>114</b>
2014-06-27 17:19:33 - runtime notice:  AbanteCart core v.1.1.8 Only variables should be passed by reference in <b>/home/koalafan/public_html/cart/core/engine/resources.php</b> on line <b>84</b>
2014-06-27 17:19:45 - warning:  AbanteCart core v.1.1.8 imagecopyresampled(): supplied argument is not a valid Image resource in <b>/home/koalafan/public_html/cart/core/lib/image.php</b> on line <b>112</b>
2014-06-28 12:23:43 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.100470.1404044623 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>
2014-06-28 16:30:43 - warning:  AbanteCart core v.1.1.8 filemtime() [<a href='function.filemtime'>function.filemtime</a>]: stat failed for /home/koalafan/public_html/cart/system/cache/resources/resources.100484.1404059443 in <b>/home/koalafan/public_html/cart/core/lib/cache.php</b> on line <b>54</b>