Support » Plugin: a3 Lazy Load » Installation Fatal Error

  • pci


    I install plugin result 0> error => blank page website unaccessible.
    I download and upload the plugin a3-lazy.
    I got the first time activating this error:
    Warning: require(/var/www/clients/client4/web11/web/wp-content/plugins/a3-lazy-load/vendor/autoload.php): failed to open stream: No such file or directory in /var/www/clients/client4/web11/web/wp-content/plugins/a3-lazy-load/a3-lazy-load.php on line 42

    Fatal error: require(): Failed opening required ‘/var/www/clients/client4/web11/web/wp-content/plugins/a3-lazy-load/vendor/autoload.php’ (include_path=’.:/usr/share/php’) in /var/www/clients/client4/web11/web/wp-content/plugins/a3-lazy-load/a3-lazy-load.php on line 42

    The page I need help with: [log in to see the link]

Viewing 3 replies - 1 through 3 (of 3 total)
  • Thread Starter pci


    I erased the folder a3 (site crashed)

    Plugin Author Steve Truman


    Hello @pci

    Thanks for posting the error message – When you have downloaded and installed the a3 Lazy Load plugin from the WordPress Plugins dashboard, the WordPress Installer has missed the autoload file from Composer.

    We had just the same issue with the WooCommerce plugin on a clients multi site yesterday with the same sort of results you had (different error message) – but when we delete the WooCommerce plugin we also got a white screen.

    The issue is from either the WP installer or from the server, I am not sure, I mean that when installing or updating a plugin from the WordPress pages it misses some files for some plugins.

    The way we resolved it is – if you have access to the backend – manually download a3 Lazy Load from the plugins description page – See the download link at the top right – just under the banner.

    Save the zip to your computer – then go to the WordPress Plugins page > Add New and at the top of the page click the [ Upload Plugin ] button – and upload and activate the plugin that you save to your computer. Once it is downloaded you can then just activate it and should not have any issues.

    For anyone reading this who can’t access the wp-admin (or has a white screen) – access via ftp and upload the plugin zip folder.

    Manually upload it does not use the WordPress installer and the files are not missed.

    I don’t know why the WP installer is missing files on install or upgrade – it is very rare – Since our last upgrade release of a3 Lazy Load on 17th of March (10 days ago) – the plugin have been upgraded or installed over 55,000 times and yours is the first report of the issue. That is an occurance rate of 0.0018% – which is very small but no fun when you are the one in 55,000 that it has happen to.

    Please try the manual install and activate and if you would let me know how that goes for you.


    Thread Starter pci


    thanks for the advice, I tried both times:
    1) manually with filezilla => blank page
    2) with wp dasboard plugins > upload
    I check beside Composer folder: autoload.php exist. In composer Folder: 5 files autoload…php + ClassLoader.php.
    In the root folder a3 plugin: There is a file a3-lazy-load.php
    No way, I suppose that my wp5.32 with mandingo theme is incompatible.
    Best Regards Pascal.

Viewing 3 replies - 1 through 3 (of 3 total)
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