Title: memcache error Last modified: September 1, 2016 --- # memcache error * [oliverchambers](https://wordpress.org/support/users/oliverchambers/) * (@oliverchambers) * [9 years, 9 months ago](https://wordpress.org/support/topic/memcache-error-1/) * Hi, * Really like the Give plugin and for the most part it seems to be working and very interested in purchasing some add-ons. However after I enable the plugin I get the following error: * `Warning: session_start(): Cannot find save handler 'memcache' - session startup failed in public_html/wp-content/plugins/give/includes/class-give-session.php on line 371` * I am using the most up to date version of wordpress, the plugin and have attempted to uninstall and reinstall but it persists. Also tried disabling other plugins. * Any assistance would be most appreciated. * [https://wordpress.org/plugins/give/](https://wordpress.org/plugins/give/) Viewing 4 replies - 1 through 4 (of 4 total) * Thread Starter [oliverchambers](https://wordpress.org/support/users/oliverchambers/) * (@oliverchambers) * [9 years, 9 months ago](https://wordpress.org/support/topic/memcache-error-1/#post-7703030) * when I complete a transaction I also get the following error: * `Warning: Cannot modify header information - headers already sent by (output started at /var/sites/m/mwscouts.org/public_html/wp-content/plugins/give/includes/ class-give-session.php:371) in /var/sites/m/mwscouts.org/public_html/wp-includes/ pluggable.php on line 1174` * Plugin Contributor [Matt Cromwell](https://wordpress.org/support/users/webdevmattcrom/) * (@webdevmattcrom) * [9 years, 9 months ago](https://wordpress.org/support/topic/memcache-error-1/#post-7703053) * Hi there, * Looks like you’re having some issues with caching. Memcache is a type of caching and it looks like it’s negatively affecting your user “Session” with Give. * Here’s a few items to look into: 1) If you have a caching plugin, disable it while testing. If that resolves the issue, reach out to the plugin author about it. But let me know what they say as well. 2) What host are you on? Some hosts have very aggressive caching. Reach out to them about the issue as well. 3) If you could post a link to your System Info for me to review that’d be great. Go to “Donations > Settings > System Info” for that. * Let me know what you find on those three items and we’ll work it out from there. * Thanks! * Thread Starter [oliverchambers](https://wordpress.org/support/users/oliverchambers/) * (@oliverchambers) * [9 years, 9 months ago](https://wordpress.org/support/topic/memcache-error-1/#post-7703192) * Hi Matt, * Thanks for quick reply. * 1) I don’t have any caching plugins enabled. I 2) I am using TSO Host as my hosting [https://www.tsohost.com](https://www.tsohost.com) 3) * ``` ### Begin System Info ### -- Site Info Site URL: https://nord2017.mwscouts.org Home URL: https://nord2017.mwscouts.org Multisite: Yes -- Hosting Provider Host: DBH: 10.169.0.3, SRV: nord2017.mwscouts.org -- User Browser Platform: Apple Browser Name: Safari Browser Version: 9.1.1 User Agent String: Mozilla/5.0 (Macintosh; Intel Ma c OS X 10_11_5) AppleWebKit/601. 6.17 (KHTML, like Gecko) Version /9.1.1 Safari/601.6.17 -- WordPress Configuration Version: 4.6 Language: en_US Permalink Structure: /%year%/%monthnum%/%day%/%postname%/ Active Theme: Eventbrite WordPress theme 1.0 Show On Front: page Page On Front: Home (#5) Page For Posts: Blog (#246) Remote Post: wp_remote_post() works Table Prefix: Length: 5 Status: Acceptable Admin AJAX: Accessible WP_DEBUG: Disabled Memory Limit: 64M Registered Post Stati: publish, future, draft, pending, private, trash, auto-draft, inherit, refunded, failed, revoked, cancelled, abandoned -- Give Configuration Version: 1.6 Upgraded From: 1.6 Test Mode: Disabled Currency Code: GBP Currency Position: before Decimal Separator: . Thousands Separator: , -- Give Page Configuration Success Page: https://nord2017.mwscouts.org/donation-confirmation/ Failure Page: https://nord2017.mwscouts.org/transaction-failed/ Give Forms Slug: /donations -- Give Gateway Configuration Enabled Gateways: Offline Donation Default Gateway: Offline Donation -- Must-Use Plugins -- WordPress Active Plugins Akismet: 3.1.11 Contact Form 7: 4.5 Contact Form 7 MailChimp Extension: 0.4.30 Cookie Confirm: 0.4 Force Regenerate Thumbnails: 2.0.5 Give - Donation Plugin: 1.6 MailChimp Activity: 1.0.4 MailChimp for WordPress: 4.0.3 Really Simple SSL: 2.3.13 Theme Check: 20160523.1 Typeform: 0.6 Yoast SEO: 3.4.2 -- WordPress Inactive Plugins Charitable: 1.4.1 Contact Form 7 Honeypot: 1.9 Cookie Notice: 1.2.36.1 Custom Instagram Widget: 1.1 Donation Thermometer: 1.3.13 Eventbrite API: 1.0.11 Eventbrite Attendees Shortcode: 1.1.3 Event Organiser: 3.1.3 Event Organiser Posterboard: 2.1.0 Instagram Feed: 1.4.7 Instagram Feed WD: 1.1.8 Jetpack by WordPress.com: 4.2.2 Keyring: 1.6.2 MailChimp for WordPress - Top Bar: 1.2.13 Redirection: 2.4.5 Seamless Donations: 4.0.17 Simple Org Chart: 2.0 SSL Insecure Content Fixer: 2.1.6 Stripe for WooCommerce: 1.38 Tech Instagram Feed: 2.2 Wired Impact Volunteer Management: 1.1 WooCommerce: 2.6.4 WooCommerce Prices By User Role: 2.5.0 Woo Import Export: 1.2 WordPress Importer: 0.6.3 WordPress MU Domain Mapping: 0.5.5.1 WordPress Virgin Money Giving: 1.1.3 WP Retina 2x: 4.5.5 WP Store Locator: 2.2.4 WPtouch Mobile Plugin: 4.2.4 WP User Groups: 0.2.1 YouTube Embed: 5.0 -- Network Active Plugins Cookie Notice: 1.2.36.1 Event Organiser Posterboard: 2.1.0 Event Organiser: 3.1.3 Jetpack by WordPress.com: 4.2.2 Keyring: 1.6.2 Redirection: 2.4.5 WordPress Importer: 0.6.3 WordPress MU Domain Mapping: 0.5.5.1 WP Retina 2x: 4.5.5 WP Store Locator: 2.2.4 WP User Groups: 0.2.1 -- Webserver Configuration PHP Version: 5.6.22 MySQL Version: 5.6.21 Webserver Info: Apache -- PHP Configuration Safe Mode: Disabled Memory Limit: 1024M Upload Max Size: 100M Post Max Size: 100M Upload Max Filesize: 100M Time Limit: 60 Max Input Vars: 1000 URL-aware fopen: On (1) Display Errors: On (1) -- PHP Extensions cURL: Supported cURL Version: 7.41.0 zlib: Supported GD: Supported fsockopen: Supported SOAP Client: Installed Suhosin: Not Installed DOM: Installed MBString: Installed -- Session Configuration Give Use Sessions: Enabled Session: Disabled ### End System Info ### ``` * Plugin Contributor [Matt Cromwell](https://wordpress.org/support/users/webdevmattcrom/) * (@webdevmattcrom) * [9 years, 9 months ago](https://wordpress.org/support/topic/memcache-error-1/#post-7703205) * Hi there, * So a couple things stand out: * 1) You’re on a Mutli-site environment so what I’ll suggest below might need to be applied at the Root install 2) The System Info shows that you have PHP Sessions disabled, that’s definitely the source of the problem. You can either ask your host to enabled them, or if they won’t, do #3 3) You can use an alternative method for your donor sessions. Simply add this to your Root Installs wp-config.php file: `define( 'GIVE_USE_PHP_SESSIONS' , false);` * Let me know how that goes. Viewing 4 replies - 1 through 4 (of 4 total) The topic ‘memcache error’ is closed to new replies. * ![](https://ps.w.org/give/assets/icon-256x256.jpg?rev=2873287) * [GiveWP - Donation Plugin and Fundraising Platform](https://wordpress.org/plugins/give/) * [Frequently Asked Questions](https://wordpress.org/plugins/give/#faq) * [Support Threads](https://wordpress.org/support/plugin/give/) * [Active Topics](https://wordpress.org/support/plugin/give/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/give/unresolved/) * [Reviews](https://wordpress.org/support/plugin/give/reviews/) * 4 replies * 2 participants * Last reply from: [Matt Cromwell](https://wordpress.org/support/users/webdevmattcrom/) * Last activity: [9 years, 9 months ago](https://wordpress.org/support/topic/memcache-error-1/#post-7703205) * Status: not resolved