Are you making sure the calendar is not being synced? This can cause crashes.
https://wiki.dolphin-emu.org/index.php?title=Phantasy_Star_Online_Episode_I_%26_II
Telling us what build you´re using and making sure to not use cheats could also help.
https://wiki.dolphin-emu.org/index.php?title=Phantasy_Star_Online_Episode_I_%26_II
Telling us what build you´re using and making sure to not use cheats could also help.
Rig 1: Windows 10 Home | AMD A6-1450 @ 600/1000/1400 MHz | AMD Radeon HD Graphics 8250 | 4GB RAM | HP Pavilion TouchSmart 11.
Rig 2: Windows 10 Pro | Intel Core i7-2640M @ 780/2800/3500 MHz | Intel HD 3000 Mobile | 8GB RAM | Dell Latitude 6320.