Change Post Limit

Out of Nowhere the Plugin doesn’t work anymore, only shows the following Error-Message:

Please go to the Facebook Options page of our plugin and look for the “Change Post Limit” option and add the number 7 or more. You can also hide this notice on the Facebook Options page if you want.
If you are trying to add a Personal Facebook feed and you are seeing this message too, please note: Personal Facebook Accounts generally do not work with our plugin.

1. There is no “Change Post Limit” Option on the Facebook Options page, just on the Shortcode Creator ?

2. I’m a free User, so it’s limited to 6 Posts?

Thanks for your help

Shortcode:
[fts_facebook type=page id=393733186114 posts=25 height=500px posts_displayed=page_only]

System-Info:
### Begin System Info ###

Feed Them Social Version: 2.4.0

— WordPress Configuration:

WordPress Version: 4.9.5
Multisite: No
Permalink Structure: /%year%/%monthnum%/%day%/%postname%/
PHP Memory Limit: 256M
WP_DEBUG: Disabled

— Webserver Configuration:

PHP Version: 7.0.23
Web Server Info: Apache

— PHP Configuration:

Safe Mode: No
Upload Max Size: 32M
Post Max Size: 32M
Upload Max Filesize: 32M
Time Limit: 0
Max Input Vars: 1000
Allow URL File Open: On ()
Display Erros: N/A

— PHP Extensions:

FSOCKOPEN: Your server supports fsockopen.
cURL: Your server supports cURL.

— FTS Settings->Global Options:

Cache time: 15 Minutes

— Active Plugins:

All In One WP Security: 4.3.3.1
Annual Archive: 1.5.2
BackUpWordPress: 3.6.4
Better Search Replace: 1.3.2
Category Order: 1.0.3
Category Sticky Post: 2.10.1
Check and Enable GZIP compression: 1.1.11
Disable Comments: 1.7.1
Display Posts Shortcode: 2.9.0
Duplicate Post: 3.2.2
EU Cookie Law: 2.13
Feed Them Social (Facebook, Instagram, Twitter, etc): 2.4.0
Massive Addons for WPBakery Page Builder: 2.3.3
Ninja Forms: 3.2.23
Really Simple SSL: 2.5.26
Replace Image: 1.1.6
Speed Booster Pack: 3.7.1
SSL Insecure Content Fixer: 2.5.0
TablePress: 1.9
The7 Elements: 1.4.4
The7 Slider Revolution: 5.4.7.3
The7 Ultimate Addons for WPBakery Page Builder: 3.16.22
The7 WPBakery Page Builder: 5.4.5
TYPO3 tt_news Importer: 2.3.2
User Role Editor: 4.40.3
User Switching: 1.3.0
W3 Total Cache: 0.9.7
WD Instagram Feed: 1.3.1
WP-Polls: 2.73.8
WP Google Analytics Events: 2.5.1
WP Image Size Limit: 1.0.4
Yoast SEO: 7.3

— Custom Token or Keys added to Options Pages
— You must have a custom token to use the feeds

Facebook App Token: Yes
FB App ID for Like Button: No
Twitter Consumer Key: No
Twitter Secret: No
Twitter Token: No
Twitter Token Secret: No
Pinterest Token: No
Instagram: No
YouTube: No

— FaceBook & Twitter Date Format and Timezone

Date Format: one-day-ago
Timezone: Europe/Amsterdam

— Fix Twitter Time:

Fix: No

— Disable Magnific CSS:

Fix: No

— Fix Internal Server Error:

### End System Info ###