Upgrade to Premium error

Hello guys,
We bought your license but when I click on Upgrade button in the sidebar this error appears in the logs and nothing appears on the page. We had free version before and may be there was some conflict during instal of premium version of your plugin…. Anyway we need help here

2018/08/07 16:26:43 [error] 1555#1555: *405083 FastCGI sent in stderr: “PHP message: PHP Fatal error: Uncaught TypeError: Argument 1 passed to FS_Security::get_context_params() must be an instance of FS_Scope_Entity, boolean given, called in /var/www/.com/http/wp-content/plugins/wp-security-audit-log-premium/sdk/freemius/templates/pricing.php on line 65 and defined in /var/www/.com/http/wp-content/plugins/wp-security-audit-log-premium/sdk/freemius/includes/class-fs-security.php:73
Stack trace:
#0 /var/www/.com/http/wp-content/plugins/wp-security-audit-log-premium/sdk/freemius/templates/pricing.php(65): FS_Security->get_context_params(false, 1533659203, ‘upgrade’)
#1 /var/www/.com/http/wp-content/plugins/wp-security-audit-log-premium/sdk/freemius/includes/fs-core-functions.php(50): require_once(‘/var/www/foodto…’)
#2 /var/www/.com/http/wp-content/plugins/wp-security-audit-log-premium/sdk/freemius/includes/class-freemius.php(18394): fs_require_once_template(‘pricing.php’, Array)
#3 /var/www/.com/http/wp-includes/cla” while reading response header from upstream, client: 172.68.238.184, server: .com, request: “GET /wp-admin/network/admin.php?page=wsal-auditlog-pricing HTTP/1.1”, upstream: “fastcgi://unix:/var/run/php-fpm/ftl.sock:”, host: “.com”, referrer: “https://.com/wp-admin/network/admin.php?page=wsal-auditlog-pricing”

Here is also system info

### System Info → Begin ###

— Site Info —

Site URL (WP Address): https://.com
Home URL (Site Address): https://.com
Multisite: Yes

— User Browser —

Platform: Windows
Browser Name: Chrome
Browser Version: 68.0.3440.84
User Agent String: Mozilla/5.0 (Windows NT 10.0; Wi
n64; x64) AppleWebKit/537.36 (KH
TML, like Gecko) Chrome/68.0.344
0.84 Safari/537.36

— WordPress Configuration —

Version: 4.9.7
Language: en
Permalink Structure: /%postname%/
Active Theme: Food to Live Shop Own Theme 1.0
Show On Front: page
Page On Front: SP Home (#6)
Page For Posts: Unset
ABSPATH: /var/www/.com/http/
WP_DEBUG: Disabled
WP Memory Limit: 1024M