Title: Scan Error: UTF-8 Error Loop Last modified: July 14, 2018 --- # Scan Error: UTF-8 Error Loop * Resolved [sensusdata](https://wordpress.org/support/users/sensusdata/) * (@sensusdata) * [7 years, 10 months ago](https://wordpress.org/support/topic/scan-error-utf-8-error-loop/) * Hello, * I have same error which is also found in a older support ticket: [https://wordpress.org/support/topic/scan-error-4/](https://wordpress.org/support/topic/scan-error-4/) * After i start SCAN to make a duplicate, i get Scan Error – 500 Error Code “Internal Server Error”. * I found those things in the log. * Any help or hint is appreciated. * Thank you! * ——————— APACHE ERROR LOG ——————— Usage: mysqldump [OPTIONS] database [tables] OR mysqldump [OPTIONS] –databases [OPTIONS] DB1 [DB2 DB3…] OR mysqldump [OPTIONS]– all-databases [OPTIONS] For more options, use mysqldump –help sh: 2: -?: not found * ——————— WP-DEBUG LOG ——————— [14-Jul-2018 14:39:42 UTC] PHP Fatal error: Uncaught RuntimeException: UTF-8 error loop in /var/www/shop/wp-content/plugins/duplicator/ classes/utilities/class.u.json.php:36 Stack trace: #0 /var/www/shop/wp-content/ plugins/duplicator/classes/utilities/class.u.json.php(34): DUP_JSON::customEncode( Array, 2) #1 /var/www/shop/wp-content/plugins/duplicator/classes/utilities/class. u.json.php(68): DUP_JSON::customEncode(Array) #2 /var/www/shop/wp-content/plugins/ duplicator/ctrls/ctrl.package.php(29): DUP_JSON::safeEncode(Array) #3 /var/www/ www.makershop.de/wp-includes/class-wp-hook.php(286): duplicator_package_scan(”)# 4 /var/www/shop/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array) #5 /var/www/shop/wp-includes/plugin.php(453): WP_Hook->do_action(Array)# 6 /var/www/www.makershop.de/wp-admin/admin-ajax.php(99): do_action(‘wp_ajax_duplica…’)# 7 {main} thrown in /var/www/shop/wp-content/plugins/duplicator/classes/utilities/ class.u.json.php on line 36 Viewing 5 replies - 1 through 5 (of 5 total) * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [7 years, 10 months ago](https://wordpress.org/support/topic/scan-error-utf-8-error-loop/#post-10494415) * Hey [@sensusdata](https://wordpress.org/support/users/sensusdata/), * I assume you tried the recommendations from the FAQ via the other link? What version of PHP are you running by chance? * Thanks * Thread Starter [sensusdata](https://wordpress.org/support/users/sensusdata/) * (@sensusdata) * [7 years, 10 months ago](https://wordpress.org/support/topic/scan-error-utf-8-error-loop/#post-10494510) * Yes, i tried everything from FAQ section. No problem here. * Duplicator was running. This is a duplicated site from Duplicator where i want to run Duplicator and got this error. On the original site Duplicator is still working without any issue. So it’s the same server and same configuration. * I also think the problem seems to be somehow connected to mysqldump, as you can see on apache error logs. I don’t assume it has something to do with the file system. * PHP Version 7.0.27-0+deb9u1 * Thank you for further assistance! * Thread Starter [sensusdata](https://wordpress.org/support/users/sensusdata/) * (@sensusdata) * [7 years, 10 months ago](https://wordpress.org/support/topic/scan-error-utf-8-error-loop/#post-10495348) * Just a follow-up: * The scan integrity check runs really fast (around 2 seconds). I don’t find any errors in debug log, but in apache log: * Usage: mysqldump [OPTIONS] database [tables] OR mysqldump [OPTIONS] –databases[ OPTIONS] DB1 [DB2 DB3…] OR mysqldump [OPTIONS] –all-databases [OPTIONS] For more options, use mysqldump –help sh: 2: -?: not found * “sh: 2: -?: not found” * [Cory Lamle](https://wordpress.org/support/users/corylamleorg/) * (@corylamleorg) * [7 years, 10 months ago](https://wordpress.org/support/topic/scan-error-utf-8-error-loop/#post-10495560) * Hey [@sensusdata](https://wordpress.org/support/users/sensusdata/), * If you want to submit a [support ticket](https://snapcreek.com/ticket) for this issue I can have a closer look at your setup. Please provide a link to this thread when submitting the ticket. * Thanks~ * [mumbomedia](https://wordpress.org/support/users/mumbomedia/) * (@mumbomedia) * [7 years, 4 months ago](https://wordpress.org/support/topic/scan-error-utf-8-error-loop/#post-11076735) * Maybe someone has uploaded a file with some special characters like ©, which at least was the cause of the mistake for me. * Hope this helps someone who is facing the same problem. Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘Scan Error: UTF-8 Error Loop’ is closed to new replies. * ![](https://ps.w.org/duplicator/assets/icon-256x256.png?rev=2906985) * [Duplicator - Backups & Migration Plugin - Cloud Backups, Scheduled Backups, & More](https://wordpress.org/plugins/duplicator/) * [Frequently Asked Questions](https://wordpress.org/plugins/duplicator/#faq) * [Support Threads](https://wordpress.org/support/plugin/duplicator/) * [Active Topics](https://wordpress.org/support/plugin/duplicator/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/duplicator/unresolved/) * [Reviews](https://wordpress.org/support/plugin/duplicator/reviews/) * 5 replies * 3 participants * Last reply from: [mumbomedia](https://wordpress.org/support/users/mumbomedia/) * Last activity: [7 years, 4 months ago](https://wordpress.org/support/topic/scan-error-utf-8-error-loop/#post-11076735) * Status: resolved