Fatal error - editing/displaying series

I am trying to fix some issues (numbering) with the "Harlequin Presents" series.

When I try to bring up the series page I am getting a
"Fatal error: Allowed memory size of 314572800 bytes exhausted (tried to allocate 32 bytes) in /var/www/html/inc_goldseries_ledger_display.php on line 509"

I realize this series is quite large.

(Edited to include the entire error message)

I didn't get the fatal error but the right side of the page is at the bottom and formatted weirdly:



NB: this is the series page: https://www.librarything.com/nseries/258044/Harlequin-Presents

I'll pass this along to the developers.

Page loads now.