pfSense

Hi guys
using pfSense for only about 3 weeks and up on stressing the connection getting below error. please help if can.
stress scenario is running bufferbloat test on and Okla speedtest on same device and also Okla speedtest on mobile device at same time. error is below.

*Crash report begins. Anonymous machine information:

amd64
14.0-CURRENT
FreeBSD 14.0-CURRENT #1 plus-RELENG_23_05_1-n256108-459fc493a87: Wed Jun 28 04:26:04 UTC 2023 root@freebsd:/var/jenkins/workspace/pfSense-Plus-snapshots-23_05_1-main/obj/amd64/f2Em2w3l/var/jenkins/workspace/pfSense-Plus-snapshots-23_05_1-main/sources/

Crash report details:

PHP Errors:
[27-Sep-2023 23:32:54 Australia/Melbourne] PHP Fatal error: Uncaught TypeError: Unsupported operand types: string / int in /etc/inc/util.inc:2479
Stack trace:
#0 /etc/inc/pfsense-utils.inc(2013): get_memory()
#1 /usr/local/www/includes/functions.inc.php(104): pfsense_default_state_size()
#2 /usr/local/www/includes/functions.inc.php(35): get_pfstate()
#3 /usr/local/www/getstats.php(40): get_stats(Array)
#4 {main}
thrown in /etc/inc/util.inc on line 2479

No FreeBSD crash data found. *
regards