Not sure why these are appearing. Updated modules last week as there were security updates, and the issue did not appear then?
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Warning: Invalid argument supplied for foreach() in element_children() (line 6541 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 5998 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 6053 of /var/www/html/includes/common.inc).
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Warning: Invalid argument supplied for foreach() in element_children() (line 6541 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 5998 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 6053 of /var/www/html/includes/common.inc).
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Warning: Invalid argument supplied for foreach() in element_children() (line 6541 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 5998 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 6053 of /var/www/html/includes/common.inc).
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Warning: Invalid argument supplied for foreach() in element_children() (line 6541 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 5998 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 6053 of /var/www/html/includes/common.inc).
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Warning: Invalid argument supplied for foreach() in element_children() (line 6541 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 5998 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 6053 of /var/www/html/includes/common.inc).
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Warning: Invalid argument supplied for foreach() in element_children() (line 6541 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 5998 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 6053 of /var/www/html/includes/common.inc).
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Warning: Invalid argument supplied for foreach() in element_children() (line 6541 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 5998 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 6053 of /var/www/html/includes/common.inc).
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Warning: Invalid argument supplied for foreach() in element_children() (line 6541 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 5998 of /var/www/html/includes/common.inc).
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Warning: Cannot use a scalar value as an array in drupal_render() (line 6053 of /var/www/html/includes/common.inc).
Hi,
Could you send us your site admin account and url of page having those errors by private comment? We would like to have a check then fix problem for you.
Errors at #1 occured because of some empty section in Awecontent page, we deleted already.
About error 500: please take a look and follow instruction at https://www.drupal.org/node/1849728. If it still does not work, you can send us your FTP account, we will check and fix it.