Error during backup

I’m getting this error during a backup (first one):

Darwin Backup: v1.2.7,
PHP Version: 5.6.21,
User Level: 10,
WP_ALLOW_MULTISITE: false,
MULTISITE: false,
Exception::__set_state(array(
‘message’ => ‘Decompressed to 0, not 0’,
‘string’ => ‘exception \’Exception\’ with message \’Decompressed to 0, not 0\’ in /wp-content/plugins/darwin-backup/AnyWay/PhpEmbeddedFsArchive.php:181
Stack trace:
#0 /wp-content/plugins/darwin-backup/AnyWay/Tasks/Decompress.php(108): AnyWay_PhpEmbeddedFsArchive->gzreadblock(Resource id #686)
#1 /wp-content/plugins/darwin-backup/AnyWay/Tasks/Decompress.php(342): AnyWay_Tasks_Decompress->gzreadblock(Resource id #686)
#2 /wp-content/plugins/darwin-backup/AnyWay/QueueManager.php(92): AnyWay_Tasks_Decompress->runPartial(1484504912.9303, 1484504961.9303)
#3 /wp-content/plugins/darwin-backup/AnyWay/Runner/Base.php(71): AnyWay_QueueManager->next(1484504912.9303, 1484504961.9303)
#4 /wp-content/plugins/darwin-backup/classes/Page/Create.php(92): AnyWay_Runner_Base->nextStep(1484504912.9303, 1484504961.9303)
#5 [internal function]: AnyWay_Wordpress_Page_Create->next_step_ajax(\’\’)
#6 /wp-content/plugins/darwin-backup/classes/Page/Base.php(189): call_user_func_array(Array, Array)
#7 [internal function]: AnyWay_Wordpress_Page_Base->safe_action(\’\’)
#8 /wp-includes/class-wp-hook.php(298): call_user_func_array(Array, Array)
#9 /wp-includes/class-wp-hook.php(323): WP_Hook->apply_filters(\’\’, Array)
#10 /wp-includes/plugin.php(453): WP_Hook->do_action(Array)
#11 /wp-admin/admin-ajax.php(91): do_action(\’wp_ajax_anyway_…\’)
#12 {main}’,
‘code’ => 0,
‘file’ => ‘/wp-content/plugins/darwin-backup/AnyWay/PhpEmbeddedFsArchive.php’,
‘line’ => 181,
‘trace’ =>
array (
0 =>
array (
‘file’ => ‘/wp-content/plugins/darwin-backup/AnyWay/Tasks/Decompress.php’,
‘line’ => 108,
‘function’ => ‘gzreadblock’,
‘class’ => ‘AnyWay_PhpEmbeddedFsArchive’,
‘type’ => ‘->’,
‘args’ =>
array (
0 => NULL,
),
),
1 =>
array (
‘file’ => ‘/wp-content/plugins/darwin-backup/AnyWay/Tasks/Decompress.php’,
‘line’ => 342,
‘function’ => ‘gzreadblock’,
‘class’ => ‘AnyWay_Tasks_Decompress’,
‘type’ => ‘->’,
‘args’ =>
array (
0 => NULL,
),
),
2 =>
array (
‘file’ => ‘/wp-content/plugins/darwin-backup/AnyWay/QueueManager.php’,
‘line’ => 92,
‘function’ => ‘runPartial’,
‘class’ => ‘AnyWay_Tasks_Decompress’,
‘type’ => ‘->’,
‘args’ =>
array (
0 => 1484504912.9302721,
1 => 1484504961.9302721,
),
),
3 =>
array (
‘file’ => ‘/wp-content/plugins/darwin-backup/AnyWay/Runner/Base.php’,
‘line’ => 71,
‘function’ => ‘next’,
‘class’ => ‘AnyWay_QueueManager’,
‘type’ => ‘->’,
‘args’ =>
array (
0 => 1484504912.9302721,
1 => 1484504961.9302721,
),
),
4 =>
array (
‘file’ => ‘/wp-content/plugins/darwin-backup/classes/Page/Create.php’,
‘line’ => 92,
‘function’ => ‘nextStep’,
‘class’ => ‘AnyWay_Runner_Base’,
‘type’ => ‘->’,
‘args’ =>
array (
0 => 1484504912.9302721,
1 => 1484504961.9302721,
),
),
5 =>
array (
‘function’ => ‘next_step_ajax’,
‘class’ => ‘AnyWay_Wordpress_Page_Create’,
‘type’ => ‘->’,
‘args’ =>
array (
0 => ”,
),
),
6 =>
array (
‘file’ => ‘/wp-content/plugins/darwin-backup/classes/Page/Base.php’,
‘line’ => 189,
‘function’ => ‘call_user_func_array’,
‘args’ =>
array (
0 =>
array (
0 =>
AnyWay_Wordpress_Page_Create::__set_state(array(
‘order’ => 2,
‘events’ =>
array (
),
‘actions’ =>
array (
‘wp_ajax_anyway_start_ajax’ =>
array (
0 =>
array (
0 =>
array (
0 => NULL,
1 => ‘start_ajax’,
),
1 => 10,
2 => 1,
),
),
‘wp_ajax_anyway_stop_ajax’ =>
array (
0 =>
array (
0 =>
array (
0 => NULL,
1 => ‘stop_ajax’,
),
1 => 10,
2 => 1,
),
),
‘wp_ajax_anyway_next_step_ajax’ =>
array (
),
),
‘notices’ =>
array (
),
‘shutdown_handler_enabled’ => true,
‘start_time’ => 1484504907.9302721,
)),
1 => ‘next_step_ajax’,
),
1 =>
array (
0 => ”,
),
),
),
7 =>
array (
‘function’ => ‘safe_action’,
‘class’ => ‘AnyWay_Wordpress_Page_Base’,
‘type’ => ‘->’,
‘args’ =>
array (
0 => ”,
),
),
8 =>
array (
‘file’ => ‘/wp-includes/class-wp-hook.php’,
‘line’ => 298,
‘function’ => ‘call_user_func_array’,
‘args’ =>
array (
0 =>
array (
0 =>
AnyWay_Wordpress_Page_Create::__set_state(array(
‘order’ => 2,
‘events’ =>
array (
),
‘actions’ =>
array (
‘wp_ajax_anyway_start_ajax’ =>
array (
0 =>
array (
0 =>
array (
0 => NULL,
1 => ‘start_ajax’,
),
1 => 10,
2 => 1,
),
),
‘wp_ajax_anyway_stop_ajax’ =>
array (
0 =>
array (
0 =>
array (
0 => NULL,
1 => ‘stop_ajax’,
),
1 => 10,
2 => 1,
),
),
‘wp_ajax_anyway_next_step_ajax’ =>
array (
),
),
‘notices’ =>
array (
),
‘shutdown_handler_enabled’ => true,
‘start_time’ => 1484504907.9302721,
)),
1 => ‘safe_action’,
),
1 =>
array (
0 => ”,
),
),
),
9 =>
array (
‘file’ => ‘/wp-includes/class-wp-hook.php’,
‘line’ => 323,
‘function’ => ‘apply_filters’,
‘class’ => ‘WP_Hook’,
‘type’ => ‘->’,
‘args’ =>
array (
0 => ”,
1 =>
array (
0 => ”,
),
),
),
10 =>
array (
‘file’ => ‘/wp-includes/plugin.php’,
‘line’ => 453,
‘function’ => ‘do_action’,
‘class’ => ‘WP_Hook’,
‘type’ => ‘->’,
‘args’ =>
array (
0 =>
array (
0 => ”,
),
),
),
11 =>
array (
‘file’ => ‘/wp-admin/admin-ajax.php’,
‘line’ => 91,
‘function’ => ‘do_action’,
‘args’ =>
array (
0 => ‘wp_ajax_anyway_next_step_ajax’,
),
),
),
‘previous’ => NULL,
))