Support » Plugin: LifterLMS » Nothing display when I click “add new course” or “edit course”

  • Resolved joelvc


    I was trying to create a new course and when using the function “add new course”, a blank (really nothing on it) display after the page finished loading (you can see there is no more activity).
    The same happens with editing a course. The list comes, but the editing is also blank.
    I have to stay that course are on and can be accessed on the user side. Only the editing is not working.
    Thanks in advance for your help!

Viewing 4 replies - 1 through 4 (of 4 total)
  • Plugin Support Natalie


    Hi @joelvc,

    I’m sorry you’re having this issue!

    There is a bit more information we need to help you though. First can you give us a copy of your system report: there is information here on how you have to post code on the forums as well:

    Additionally, we’ll need the actual error messages that’s occurring when you try to load the page to help us debug the white screen. You can find more information on how to do that here:

    That said, this sounds like this could be a plugin conflict. You will want to rule out a plugin or theme conflict by disabling all plugins except for LifterLMS and then switching to a default WordPress theme (like twentynineteen) and see if that solves the issue. Then turn each plugin then theme back on one by one until you see it reappear again.

    The more information you can provide us on the issue, the more direct an answer we can give you so that you’re able to get your course editor working again!

    Let us know if you have any further questions!

    Thanks and take care,



    Here is the status report:

    Home Url:
    Site Url:
    Login Url:
    Version: 5.2.2
    Debug Mode: No
    Debug Log: No
    Debug Display: Yes
    Locale: en_US
    Multisite: No
    Page For Posts: Blog (#5) []
    Page On Front: Swiss Leaders Group (#618) []
    Permalink Structure: /%postname%/
    Show On Front: page
    Wp Cron: Yes
    Version: 3.33.2
    Db Version: 3.33.2
    Course Catalog: Courses (#9898) []
    Membership Catalog: Memberships (#35892) []
    Student Dashboard: Dashboard (#35894) []
    Checkout Page: Checkout (#30913) []
    Course Catalog Per Page: 9
    Course Catalog Sorting: menu_order,ASC
    Membership Catalog Per Page: 9
    Membership Catalog Sorting: menu_order,ASC
    Site Membership: Not Set
    Courses Endpoint: my-courses
    Edit Endpoint: edit-account
    Lost Password Endpoint: lost-password
    Vouchers Endpoint: redeem-voucher
    Autogenerate Username: yes
    Password Strength Meter: yes
    Minimum Password Strength: weak
    Terms Required: no
    Terms Page: Not Set
    Checkout Names: required
    Checkout Address: optional
    Checkout Phone: optional
    Checkout Email Confirmation: yes
    Open Registration: no
    Registration Names: required
    Registration Address: optional
    Registration Phone: hidden
    Registration Voucher: optional
    Registration Email Confirmation: no
    Account Names: required
    Account Address: optional
    Account Phone: optional
    Account Email Confirmation: yes
    Confirmation Endpoint: confirm-payment
    Force Ssl Checkout: yes
    Country: US
    Currency: USD
    Currency Position: left
    Thousand Separator: ,
    Decimal Separator: .
    Decimals: 2
    Trim Zero Decimals: no
    Recurring Payments: yes
    Email From Address:
    Email From Name: Swiss Leaders Group
    Email Footer Text: 
    Email Header Image: 36384
    Cert Bg Width: 800
    Cert Bg Height: 616
    Cert Legacy Compat: no
    Manual: Disabled
    Manual Logging: no
    Manual Order: 1
    Mysql Version: 5.6.40
    Php Curl: Yes
    Php Default Timezone: UTC
    Php Fsockopen: Yes
    Php Max Input Vars: 1000
    Php Max Upload Size: 128 MB
    Php Memory Limit: 768M
    Php Post Max Size: 128M
    Php Soap: Yes
    Php Suhosin: No
    Php Time Limt: 120
    Php Version: 7.2.20
    Software: Apache
    Wp Memory Limit: 40M
    HTTP USER AGENT: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.100 Safari/537.36
    Name: Astra
    Version: 1.8.7
    Child Theme: No
    Llms Support: Yes
    Asset CleanUp Pro: Page Speed Booster:
    bbPress: 2.5.14
    Elementor: 2.6.1
    Elementor Blocks for Gutenberg: 1.0.1
    Elementor Pro: 2.5.13
    Facebook for WooCommerce: 1.9.15
    Fact Check for YoastSEO: 1.4
    Glue for Yoast SEO & AMP: 0.4.3
    Gutenberg: 6.1.0
    HubSpot All-In-One Marketing - Forms, Popups, Live Chat: 7.5.4
    Jetpack by 7.5.2
    LifterLMS: 3.33.2
    LifterLMS Helper: 3.0.2
    LifterLMS Labs: 1.5.2
    LifterLMS WooCommerce: 2.0.11
    MapifyPro: 3.2.0
    Shortcode Variables: 3.0.3
    Stackable - Gutenberg Blocks: 1.15.6
    Team Members PRO: 4.1.2
    WebKit-WP-Mini #3750669: 0.1
    WooCommerce: 3.6.5
    WooCommerce Admin: 0.15.0
    WooCommerce Amazon Pay Gateway: 1.10.1
    WooCommerce Google Analytics Integration: 1.4.10
    WooCommerce One Click Upsell Funnel: 2.0.1
    WooCommerce Order Status Control: 1.10.1
    WooCommerce PayPal Checkout Gateway: 1.6.15
    WooCommerce Payrexx Gateway: 1.6.13
    WooCommerce Price Based on Country (Basic): 1.8.9
    Woo Coupon URL: 1.0.0
    WP-Optimize: 2.3.4
    Yoast SEO Premium: 11.6
    BbPress: Yes
    BuddyPress: No
    WooCommerce: Yes
    Template Overrides
    • This reply was modified 4 months ago by  Andrew Nevins.
    • This reply was modified 4 months ago by  Jan Dembowski. Reason: Fixed formatting


    Here is the error message on the log for that blank page:

    [12-Jul-2019 09:14:06 UTC] PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘wc_print_notices’ not found or invalid function name in /home/swisslea/public_html/wp-includes/class-wp-hook.php on line 286

    Plugin Author Thomas Patrick Levy



    As a customer you have access to premium support via

    Could you please submit a support ticket and reference this thread.

    I believe that we are dealing with a plugin conflict (probably resulting from one of the WooCommerce add-ons you’re using) but I’m not positive.

    If you can submit a ticket we can share information privately and get this resolved very quickly for you.


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