Backup fails after 10 seconds

Hello,

I am using BackWPUp with two WordPress websites, both on the same server with identical configuration: Linux Debian 10, PHP 8.0, MariaDB.

BackWpUp worked fine on both sites until yesterday. Then I did a database optimization on one of these sites with “Advanced Database Cleaner”, but did clean only revisions and transients.

After that BackWPUp failed to work on this site and gives constantly this error: “Auftrag ?regenpfeifer.eu Backup“ wurde gestartet, aber hat für 10 Sekunden nicht geantwortet. Bitte überprüfe Informationen.”

The other WordPress site on the same server works still fine with BackWpUp.

I have tried the following:

1) Deleted the plugin, removed all entries of BackWpUp in the Database, installed again

2) Deactivated all other plugins

Unfortunately, nothing of this helped. What could be the reason of this error?

Below I am sending the debug information, it seems to be exactly the same as on my other site.

Thank you very much for any help!

Yours, Hermann Josef

WordPress-Version: 5.8.2
BackWPup-Version: 3.10.0
PHP-Version: 8.0.13  (64bit)
MySQL-Version: 10.5.12-MariaDB-1:10.5.12+maria~buster
cURL-Version: 7.64.0
cURL-SSL-Version: OpenSSL/1.1.1d
WP-Cron-URL: https://regenpfeifer.eu/wp-cron.php
Server-Selbstverbindung: Nicht erwartete HTTP-Antwort:
Status-Code: 200
Date: Wed, 08 Dec 2021 08:51:37 GMT
Server: Apache
Expires: Wed, 11 Jan 1984 05:00:00 GMT
Cache-control: no-cache, must-revalidate, max-age=0
Strict-transport-security: max-age=15768000
Referrer-policy: strict-origin-when-cross-origin
X-frame-options: Array
Accept: application/activity+json
Upgrade: h2,h2c
Vary: Accept-Encoding
X-content-type-options: nosniff
X-xss-protection: 1; mode=block
Content-security-policy: default-src 'self' https:; connect-src 'self' https:; font-src 'self' https:; frame-src https:; img-src data: 'self' https:; script-src 'self' 'unsafe-eval' 'unsafe-inline' https:; style-src 'self' 'unsafe-inline' https:; frame-ancestors https:
Content-length: 0
Content-type: text/html; charset=UTF-8

Document root: /var/www/privateblog
Temp-Verzeichnis: /var/www/privateblog/wp-content/uploads/backwpup-6a0172-temp/
Protokoll-Verzeichnis: /var/www/privateblog/wp-content/uploads/backwpup-6a0172-logs/
Server: Apache
Betriebssystem: Linux
PHP-SAPI: fpm-fcgi
Aktueller PHP-User: www-data
Maximale Skript-Laufzeit: 3600 Sekunden
BackWPup Maximale Script-Ausführungszeit: 30 Sekunden
Alternative WP Cron: Aus
WP Cron abgeschaltet: Aus
Verzeichnis-Rechte: 493
Server-Zeit: 8:51
Zeit der Website: 09:51
Zeitzone der Website: Europe/Berlin
Zeitverschiebung der Website: 1 Stunden
Sprache der Website: de-DE
Zeichensatz des MySQL-Clients: utf8mb4
PHP-Memory-Limit: 512M
WordPress-Memory-Limit: 40M
Maximales WordPress-Memory-Limit: 512M
Benutzter Speicher: 12,00 MB
Deaktivierte PHP-Funktionen:: pcntl_alarm, pcntl_fork, pcntl_waitpid, pcntl_wait, pcntl_wifexited, pcntl_wifstopped, pcntl_wifsignaled, pcntl_wifcontinued, pcntl_wexitstatus, pcntl_wtermsig, pcntl_wstopsig, pcntl_signal, pcntl_signal_get_handler, pcntl_signal_dispatch, pcntl_get_last_error, pcntl_strerror, pcntl_sigprocmask, pcntl_sigwaitinfo, pcntl_sigtimedwait, pcntl_exec, pcntl_getpriority, pcntl_setpriority, pcntl_async_signals, pcntl_unshare, 
Geladene PHP-Erweiterungen:: Core, FFI, OAuth, PDO, PDO_ODBC, Phar, Reflection, SPL, SimpleXML, Zend OPcache, apcu, bcmath, bz2, calendar, cgi-fcgi, ctype, curl, date, dom, enchant, exif, fileinfo, filter, ftp, gd, gettext, gmp, hash, http, iconv, igbinary, imagick, intl, json, libsmbclient, libxml, mbstring, mcrypt, memcached, msgpack, mysqli, mysqlnd, odbc, openssl, pcre, pdo_mysql, pdo_pgsql, pdo_sqlite, pgsql, posix, raphf, readline, redis, session, shmop, smbclient, soap, sockets, sodium, sqlite3, standard, sysvmsg, sysvsem, sysvshm, tidy, tokenizer, xml, xmlreader, xmlwriter, xsl, zip, zlib

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