Fatal Error - Deleting Pages IMPORTANT

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Good Morning,

We had a tremendous issue last week that ended up deleting over 50 pages on our website. Every time we tried adding a new blog and clicked the blue Post button, nothing would happen. I would then exit out of the blog post and a fatal error came up saying:

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 33 bytes) in C:\inetpub\wwwroot\susd\concrete\core\libraries\cache.php on line 6

After I clicked the back button the entire page and all of its sub pages were deleted. I tried this on 3 different pages under different users and the same issue happened. I had to uninstall the package and reinstall it and lost all the announcements because of it (over 20 pages worth). We thought it was a server issue but the only error we received was when we tried adding a blog post. We even placed the website on a better server and the same issue occured. We are a school District so you can imagine how HUGE this is for us if it happens in the middle of the school year. Right now this website is not live but we plan on it being live in 1 month.

First, how do we prevent this in the future. Second, why did this happen? It was working fine for months and then one afternoon this happened.

Type: Pre-Sale
Status: New
ScottsdaleUnified
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concrete5 Environment Information

# concrete5 Version
5.6.3.3

# concrete5 Packages
Accordion Slide Show (0.9.0), Advanced Page List (1.0.3), Bootstrap Image Gallery (3.0.0.5), Dojo Folio Slider (1.5.1), Expand / Collapse (1.2.6), FlexSlider (2.2.0.5), Formigo Documents Manager (1.0.1), Formigo Social Links (1.0.1), Galleria image gallery (2.0), Get Directions (1.0b), Pro Blog (12.4.4), Pro Events (11.1.0), Pro News (5.1.0), Slate Theme (1.5.3.1).

# concrete5 Overrides
languages/ar, languages/cs_CZ, languages/da_DK, languages/de_DE, languages/el_GR, languages/es_AR, languages/es_ES, languages/es_MX, languages/es_PE, languages/fa_IR, languages/fi_FI, languages/fr_FR, languages/he_IL, languages/it_IT, languages/ja_JP, languages/nb_NO, languages/nl_NL, languages/pt_PT, languages/ro_RO, languages/ru_RU, languages/sk_SK, languages/sl_SI, languages/sv_SE, languages/tr_TR, languages/vi_VN, languages/zh_CN, languages/zh_TW, themes/slate

# concrete5 Cache Settings
Block Cache - On
Overrides Cache - On
Full Page Caching - Off

# Server Software
Microsoft-IIS/8.5

# Server API
cgi-fcgi

# PHP Version
5.6.8

# PHP Extensions
bcmath, calendar, cgi-fcgi, Core, ctype, curl, date, dom, ereg, filter, ftp, gd, gettext, hash, iconv, json, libxml, mbstring, mcrypt, mhash, mysql, mysqli, mysqlnd, odbc, openssl, pcre, PDO, pdo_mysql, Phar, Reflection, session, SimpleXML, soap, SPL, standard, tokenizer, wddx, wincache, xml, xmlreader, xmlrpc, xmlwriter, zip, zlib.

# PHP Settings
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log_errors_max_len - 1024
max_file_uploads - 20
max_input_nesting_level - 64
max_input_time - 60
max_input_vars - 1000
memory_limit - 1024M
post_max_size - 8M
sql.safe_mode - Off
upload_max_filesize - 2M
mysql.max_links - Unlimited
mysql.max_persistent - Unlimited
mysqli.max_links - Unlimited
mysqli.max_persistent - Unlimited
odbc.max_links - Unlimited
odbc.max_persistent - Unlimited
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soap.wsdl_cache_limit - 5
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wincache.ttlmax - 1200

Browser User-Agent String

Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36

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