Security Log White Screen + PHP Error

When I try to view the Security Log the top section fo the screen (Security Log Error / PHP Log Error) displays, but the rest of the screen is blank.

The following PHP error is triggered as a result:

PHP Parse error:  syntax error, unexpected ‘{‘ in /home/———/wp-content/plugins/bulletproof-security/admin/security-log/security-log.php on line 117

Prior to doing this, I updated this site as follows, not having updated it for maybe 6 months:

(a) Update BPS Pro plugin  and run setup wizard.

(b) Upgrade to WP 3.81.  This gave WSOD.

(c) Renamed plugins folder, re-ran the WP update, renamed plugins folder back, re-activated BPS Pro.

(d) Then checked and re-activated the remaining plugins, went through BPS setup wizard again, and made sure I had the right files backed up for Autorestore.

All else seems to be ok, except I can’t view the Security Log screen. Wondering if this is a corruption in the file or something wrong with my setup.

I can’t see any obvious errors on line 117:

if (isset($_POST['Submit-Error-Log-Off']) && current_user_can('manage_options'){
check_admin_referer( 'bps-error-log-off' );

Wondered if this was the result of some problem during the WP/plugin updates and if this had been reported before.