Error discovered

Problem: file_put_contents(/var/www/bellydance/data/www/mymedtab.com/tmp//currency.1031.2719.l2686yp.cache) [function.file-put-contents]: failed to open stream: Permission denied
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File: /var/www/bellydance/data/www/mymedtab.com/core/Currency.php Line: 27 Time: Sat, 28 Jan 12 03:20:38 +0200 Code: 27901 Level: 2 Description: file_put_contents(/var/www/bellydance/data/www/mymedtab.com/tmp//currency.1031.2719.l2686yp.cache) [function.file-put-contents]: failed to open stream: Permission denied Store ID: 1031 Template ID: 2719 Channel ID: 1 Site domain: mymedtab.com Get variables: [unique_id] => generic_tamiflu Session variables: [session_lang] => en [open_cat] => 4095 [channel_id] => 1 [ya] => 1 [discount] => 0 [items_sum] => 0 [count] => 0 [session_currency] => USD Server variables: [REDIRECT_STATUS] => 200 [HTTP_HOST] => mymedtab.com [HTTP_X_FORWARDED_FOR] => 38.107.179.233 [HTTP_X_REAL_IP] => 38.107.179.233 [HTTP_CONNECTION] => close [HTTP_X_CC_ID] => ccc03-02 [HTTP_USER_AGENT] => CCBot/1.0 (+http://www.commoncrawl.org/bot.html) [HTTP_ACCEPT] => text/html,application/xhtml+xml,text/xml;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5 [HTTP_ACCEPT_LANGUAGE] => en-us,en;q=0.5 [HTTP_ACCEPT_ENCODING] => gzip [HTTP_ACCEPT_CHARSET] => ISO-8859-1,utf-8;q=0.7,*;q=0.7 [HTTP_CACHE_CONTROL] => no-cache [HTTP_PRAGMA] => no-cache [PATH] => /usr/local/bin:/usr/bin:/bin [SERVER_SIGNATURE] => [SERVER_SOFTWARE] => Apache [SERVER_NAME] => mymedtab.com [SERVER_ADDR] => 77.120.124.189 [SERVER_PORT] => 80 [REMOTE_ADDR] => 38.107.179.233 [DOCUMENT_ROOT] => /var/www/bellydance/data/www/mymedtab.com [SERVER_ADMIN] => 2367236@gmail.com [SCRIPT_FILENAME] => /var/www/bellydance/data/www/mymedtab.com/pill_page.php [REMOTE_PORT] => 52177 [REDIRECT_QUERY_STRING] => unique_id=generic_tamiflu [REDIRECT_URL] => /medications/cost_of_generic_tamiflu.html [GATEWAY_INTERFACE] => CGI/1.1 [SERVER_PROTOCOL] => HTTP/1.0 [REQUEST_METHOD] => GET [QUERY_STRING] => unique_id=generic_tamiflu [REQUEST_URI] => /medications/cost_of_generic_tamiflu.html [SCRIPT_NAME] => /pill_page.php [PHP_SELF] => /pill_page.php [REQUEST_TIME] => 1327713637 [argv] => Array ( [0] => unique_id=generic_tamiflu ) [argc] => 1