Title: Fatal error: Uncaught mysqli_sql_exception: Last modified: May 9, 2024 --- # Fatal error: Uncaught mysqli_sql_exception: * Resolved [Romanko](https://wordpress.org/support/users/romanko/) * (@romanko) * [2 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-uncaught-mysqli_sql_exception-2/) * Hi, I have a wordpress site backup from 2021 and recently decided to revive it. I have uploaded the files to the hosting and the database. But I get this error on the domain now> * **Deprecated**: Optional parameter $content declared before required parameter $post is implicitly treated as a required parameter in **/home/cdcearth/public_html/ wp-includes/functions.php** on line **840** * **Fatal error**: Uncaught mysqli_sql_exception: Access denied for user ‘cdcearth_adminko’@’localhost’ to database ‘cdcearth_cdc’ in /home/cdcearth/public_html/wp-includes/wp-db.php: 1084 Stack trace: #0 /home/cdcearth/public_html/wp-includes/wp-db.php(1084): mysqli_select_db(Object(mysqli), ‘cdcearth_cdc’) #1 /home/cdcearth/public_html/ wp-includes/wp-db.php(1718): wpdb->select(‘cdcearth_cdc’, Object(mysqli)) #2 / home/cdcearth/public_html/wp-includes/wp-db.php(632): wpdb->db_connect() #3 / home/cdcearth/public_html/wp-includes/load.php(482): wpdb->__construct(‘cdcearth_admink…’,‘ password’, ‘cdcearth_cdc’, ‘localhost’) #4 /home/cdcearth/public_html/wp-settings. php(124): require_wp_db() #5 /home/cdcearth/public_html/wp-config.php(90): require_once(‘/ home/cdcearth/…’) #6 /home/cdcearth/public_html/wp-load.php(37): require_once(‘/ home/cdcearth/…’) #7 /home/cdcearth/public_html/wp-blog-header.php(13): require_once(‘/ home/cdcearth/…’) #8 /home/cdcearth/public_html/index.php(17): require(‘/home/ cdcearth/…’) #9 {main} thrown in **/home/cdcearth/public_html/wp-includes/wp- db.php** on line **1084** * I am no expert in php, can anyone help? Thank you very much. Viewing 4 replies - 1 through 4 (of 4 total) * Moderator [t-p](https://wordpress.org/support/users/t-p/) * (@t-p) * [2 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-uncaught-mysqli_sql_exception-2/#post-17744995) * Try reviewing [https://www.arrayoverflow.com/question/PHP—Error-%3A-Deprecated%3A-Optional-parameter-declared-before-required-parameter/3593#:~:text=To%20solve%20this%2C%20simply%20move%20the%20optional%20parameter,and%20ensure%20that%20the%20function%20works%20as%20expected](https://www.arrayoverflow.com/question/PHP—Error-%3A-Deprecated%3A-Optional-parameter-declared-before-required-parameter/3593#:~:text=To%20solve%20this%2C%20simply%20move%20the%20optional%20parameter,and%20ensure%20that%20the%20function%20works%20as%20expected). * Thread Starter [Romanko](https://wordpress.org/support/users/romanko/) * (@romanko) * [2 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-uncaught-mysqli_sql_exception-2/#post-17748385) * thank you, the deprecated error is no more. But the database error remains still. Can anyone help me please? Thank you very much. * **Fatal error**: Uncaught mysqli_sql_exception: Access denied for user ‘cdcearth_adminko’@’localhost’ to database ‘cdcearth_cdc’ in /home/cdcearth/public_html/wp-includes/wp-db.php: 1084 Stack trace: #0 /home/cdcearth/public_html/wp-includes/wp-db.php(1084): mysqli_select_db(Object(mysqli), ‘cdcearth_cdc’) #1 /home/cdcearth/public_html/ wp-includes/wp-db.php(1718): wpdb->select(‘cdcearth_cdc’, Object(mysqli)) #2 / home/cdcearth/public_html/wp-includes/wp-db.php(632): wpdb->db_connect() #3 / home/cdcearth/public_html/wp-includes/load.php(482): wpdb->__construct(‘cdcearth_admink…’,‘ password’, ‘cdcearth_cdc’, ‘localhost’) #4 /home/cdcearth/public_html/wp-settings. php(124): require_wp_db() #5 /home/cdcearth/public_html/wp-config.php(90): require_once(‘/ home/cdcearth/…’) #6 /home/cdcearth/public_html/wp-load.php(37): require_once(‘/ home/cdcearth/…’) #7 /home/cdcearth/public_html/wp-blog-header.php(13): require_once(‘/ home/cdcearth/…’) #8 /home/cdcearth/public_html/index.php(17): require(‘/home/ cdcearth/…’) #9 {main} thrown in **/home/cdcearth/public_html/wp-includes/wp- db.php** on line **1084** * Thread Starter [Romanko](https://wordpress.org/support/users/romanko/) * (@romanko) * [2 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-uncaught-mysqli_sql_exception-2/#post-17748395) * Nevermind, it happens if you don’t set the permissions for the user of the database. It is working now. * Moderator [t-p](https://wordpress.org/support/users/t-p/) * (@t-p) * [2 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-uncaught-mysqli_sql_exception-2/#post-17748478) * Glad its sorted 🙂 Viewing 4 replies - 1 through 4 (of 4 total) The topic ‘Fatal error: Uncaught mysqli_sql_exception:’ is closed to new replies. ## Tags * [database](https://wordpress.org/support/topic-tag/database/) * [deprecated](https://wordpress.org/support/topic-tag/deprecated/) * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/) * [php](https://wordpress.org/support/topic-tag/php/) * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 4 replies * 2 participants * Last reply from: [t-p](https://wordpress.org/support/users/t-p/) * Last activity: [2 years, 1 month ago](https://wordpress.org/support/topic/fatal-error-uncaught-mysqli_sql_exception-2/#post-17748478) * Status: resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics