Here is the gravity forms system status report.
Note that although it refers to the paypal addon , that is not any more enabled. Also the profile builder components are not used and should be removed.
I have tried removing all plugins except cerber and gravity forms and the problem persists until I remove cerber. The same applies on both my hosting and on wampserver.
Rob Thirlby
### Gravity Forms ###
Version: 2.2.5 ?
Upload folder: /home/ldsmembers/public_html/wp-content/uploads/gravity_forms/
Upload folder permissions: Writable ?
Output CSS: Yes
Output HTML5: No
No-Conflict Mode: Yes
Currency: GBP
Background updates: No
### Add-Ons ###
PayPal Standard: by rocketgenius – 2.8 ?
### Database ###
Database Version: 2.2.5 ? Your database is up-to-date.
wp_rg_lead_detail_long: ?
wp_rg_lead_notes: ?
wp_rg_lead_detail: ?
wp_rg_lead: ?
wp_rg_form_view: ?
wp_rg_form_meta: ?
wp_rg_form: ?
wp_rg_lead_meta: ?
wp_rg_incomplete_submissions: ?
wp_gf_addon_feed: ?
wp_gf_addon_payment_transaction: ?
wp_gf_addon_payment_callback: ?
### WordPress ###
Home URL: https://www.ldsmembers.co.uk
Site URL: https://www.ldsmembers.co.uk
WordPress Version: 4.9.2 ?
WordPress Multisite: No
WordPress Memory Limit: 40M
WordPress Debug Mode: No
WordPress Debug Log: No
WordPress Script Debug Mode: No
WordPress Cron: No
WordPress Alternate Cron: No
### Active Plugins ###
Capability Manager Enhanced: by Jordi Canals, Kevin Behrens – 1.5.7 ?
Custom Options Plus: by Leo Caseiro – 1.8.1 ?
Email Login: by Beau Lebens – 4.6.4 ?
Email posts to subscribers: by Gopi Ramasamy – 4.3 ?
Gravity Forms Utility: by gravity+ – 1.2.0 ?
iframe: by webvitaly – 4.3 ?
Login-Logout: by Roger Howorth – 2.6.1 ?
Login Widget With Shortcode: by aviplugins.com – 5.6.6 ?
Maintenance Mode: by Lukas Juhas – 2.4.3 ?
Mammoth .docx converter: by Michael Williamson – 1.7.0 ?
Media Library Assistant: by David Lingren, Fair Trade Judaica – 2.70 ?
PDF Embedder Premium: by Dan Lester – 3.1.8 ?
Post SMTP: by Jason Hendriks, Yehuda Hassine – 1.8 ?
Post Tags and Categories for Pages: by curtismchale – 1.4.1 ?
Print, PDF & Email by PrintFriendly: by Print, PDF, & Email by PrintFriendly – 3.13.0 ?
Profile Builder Hobbyist: by Reflection Media, Barina Gabriel, Cristian Antohe – 1.3.34 ?
Really Simple Breadcrumb: by Christoph Weil – 1.0.2 ?
Restrict Content: by Pippin Williamson – 2.2 ?
Salient Visual Composer: by Michael M – WPBakery.com | Modified by ThemeNectar – 5.2.4 ?
SearchWP: by SearchWP, LLC – 2.9.4 ?
SearchWP Fuzzy Matches: by SearchWP, LLC – 1.4.3 ?
SearchWP Term Highlight: by Jonathan Christopher – 2.1.10 ?
Simple Lightbox: by Archetyped – 2.6.0 ?
Social Login, Social Sharing by miniOrange: by miniOrange – 5.4.1 ?
TinyMCE Advanced: by Andrew Ozz – 4.6.7 ?
UpdraftPlus – Backup/Restore: by UpdraftPlus.Com, DavidAnderson – 2.14.2.22 ?
WP Attachments: by Marco Milesi – 4.4 ?
WP Cerber Security & Antispam: by Gregory – 5.9 ?
WP Cloud Plugin Use-your-Drive (Google Drive): by WP Cloud Plugins – 1.9.1 ?
WP Crontrol: by John Blackbourn & contributors – 1.6.2 ?
### Web Server ###
Software: Apache
Port: 443
Document Root: /home/ldsmembers/public_html
### PHP ###
Version: 5.6.32 ?
Memory Limit: 256M
Maximum Execution Time: 120
Maximum File Upload Size: 10M
Maximum File Uploads: 20
Maximum Post Size: 8M
Maximum Input Variables: 1000
cURL Enabled: Yes (version 7.57.0)
OpenSSL: OpenSSL 1.0.2m 2 Nov 2017 (268443871)
Mcrypt Enabled: Yes
Mbstring Enabled: Yes
Loaded Extensions: Core, date, ereg, libxml, openssl, pcre, zlib, filter, hash, pcntl, readline, Reflection, SPL, session, standard, cgi-fcgi, bcmath, calendar, ctype, curl, dom, ftp, gd, iconv, imap, json, mbstring, mcrypt, mysqlnd, mysql, mysqli, PDO, pdo_mysql, pdo_sqlite, Phar, posix, SimpleXML, sockets, sqlite3, tokenizer, xml, wddx, xmlreader, xmlwriter, xsl, mhash, ionCube Loader, Zend Guard Loader, Zend OPcache
### MySQL ###
Version: 5.6.38 ?
Database Character Set: latin1
Database Collation: latin1_swedish_ci