Version à éviter totalement !!!!!

Sorry, no french speaking here. Think it killed two sidebars. Try

define( ‘AI1EC_THEME_COMPATIBILITY_FER’, false );

on line 12 of all-in-one-event-calendar.php

Also look at PHP error log and report errors

Hello !
Sorry for my poor english ??
I’ve the twenty fourteen theme.
I put it in all-in-one-event-calendar.php but it doesn’t works : my left and right sidebars disappear

<?php
/**
* Plugin Name: All-in-One Event Calendar by Time.ly
* Plugin URI: https://time.ly/
* Description: A calendar system with month, week, day, agenda views, upcoming events widget, color-coded categories, recurrence, and import/export of .ics feeds.
* Author: Time.ly Network Inc.
* Author URI: https://time.ly/
* Version: 2.1.8
* Text Domain: all-in-one-event-calendar
* Domain Path: /language
*/
define(‘ai1ec_theme_compatibility_fer’,false);
$ai1ec_base_dir = dirname( __FILE__ );
$ai1ec_base_url = plugins_url( ”, __FILE__ );

thanks

Constants are case sensitive so you must use

define( 'AI1EC_THEME_COMPATIBILITY_FER', false );

and not

define('ai1ec_theme_compatibility_fer',false);

also try to add

define( 'AI1EC_DEBUG', true );

so that it looks

<?php
/**
* Plugin Name: All-in-One Event Calendar by Time.ly
* Plugin URI: https://time.ly/
* Description: A calendar system with month, week, day, agenda views, upcoming events widget, color-coded categories, recurrence, and import/export of .ics feeds.
* Author: Time.ly Network Inc.
* Author URI: https://time.ly/
* Version: 2.1.8
* Text Domain: all-in-one-event-calendar
* Domain Path: /language
*/
define( 'AI1EC_THEME_COMPATIBILITY_FER', false );
define( 'AI1EC_DEBUG', true );

just after the other constant

it’s OK !
Thanks a lot :-)))

If it works, remove the line with AI1EC_DEBUG because it uses lots of resources

just leave

<?php
/**
* Plugin Name: All-in-One Event Calendar by Time.ly
* Plugin URI: https://time.ly/
* Description: A calendar system with month, week, day, agenda views, upcoming events widget, color-coded categories, recurrence, and import/export of .ics feeds.
* Author: Time.ly Network Inc.
* Author URI: https://time.ly/
* Version: 2.1.8
* Text Domain: all-in-one-event-calendar
* Domain Path: /language
*/
define( 'AI1EC_THEME_COMPATIBILITY_FER', false );