You have a lot of mods, some of them are outdated. In the future attach a mod list, I had to dig some of them up from the save:
Code:
galaxy_radius=575.8179
flags={
origin_pd_radiotrophic_mutants_used=62808000
origin_shoulders_of_giants_used=62808000
origin_birch_used=62808000
origin_machine_used=63949272
origin_gpm_precursor_world_used=62808000
origin_gpm_fallen_empire_colony_used=62808000
origin_void_dwellers_used=63778560
origin_tree_of_life_used=63523032
mem_crucible_system_spawned=62808000
anomaly_mem_sadrell_museum_category=63001752
mem_sadrell_cluster_spawned=62808000
fumongus_spawned=62808000
spawn_caravaneer_1=62808000
spawn_caravaneer_2=62808000
game_started=62808000
dynamic_political_events_active=62808000
has_colouroutofdeep_mod=62808000
gigastructures_enabled=62808000
already_warned_about_new_megas=62808000
has_guillis_planet_modifiers_mod=62808000
guillis_planet_modifiers_active=62808000
has_guillis_tech_mod_enabled=62808000
mem_more_events_mod=62808000
mem_sadrell_will_return=62808000
mem_vazurans_disabled=62808000
mem_version_2_14_0=62808000
has_new_frontiers_mod=62808000
planetarydiversity=62808000
planetarydiversityhabitats=62808000
planetarydiversityuniques=62808000
planetarydiversityexotics=62808000
planetarydiversityarcs=62808000
planetarydiversityshroud=62808000
has_planetary_stations_mod=62808000
has_real_space_mod=62808000
only_realspace_nebula_setting=62808000
has_shipsinscaling_hard=62808000
has_shipsinscaling_lite=62808000
has_solarstorm_mod=62808000
has_star_cluster_mod=62808000
has_system_scale_mod=62808000
giga_has_host=62808000
giga_fe_planetcrafts_1=62808000
planetshipyard_capped_u=62808000
maginot_capped_u=62808000
giga_o_stars_disabled=62808000
vanilla_dyson_capped_u=62808000
giga_buildcap_u=62808000
vanilla_interstellar_capped_u=62808000
vanilla_shipyard_capped_u=62808000
vanilla_matter_capped_u=62808000
vanilla_ringworld_capped_u=62808000
vanilla_art_capped_u=62808000
vanilla_array_capped_1=62808000
vanilla_nexus_capped_u=62808000
giga_rings_gar=62808000
cityring_capped_u=62808000
hivering_capped_u=62808000
machinering_capped_u=62808000
upgrade_capped_u=62808000
alderson_capped_u=62808000
terraform_toxic_capped_u=62808000
warmoon_capped_u=62808000
drill_capped_u=62808000
warplanet_capped_u=62808000
birch_capped_1=62808000
crystal_capped_u=62808000
terraform_barren_capped_u=62808000
shipyard_capped_u=62808000
suppressor_capped_u=62808000
geothermal_capped_u=62808000
glue_capped_u=62808000
hraemc_capped_u=62808000
hyperstructural_ass_capped_u=62808000
stellarhabitat_capped_u=62808000
kugel_capped_u=62808000
disco_moon_capped_u=62808000
terraform_gasgiant_capped_u=62808000
megabase_capped_u=62808000
matrioshka_brain_capped_u=62808000
gigaforge_capped_u=62808000
ndb_capped_1=62808000
nidavellir_capped_u=62808000
orbital_arcologies_capped_u=62808000
orbital_artificial_eco_capped_u=62808000
academy_capped_u=62808000
giga_habitats_unlimited=62808000
penrose_sphere_capped_u=62808000
planetary_computer_capped_u=62808000
siphon_capped_1=62808000
quasistellar_capped_1=62808000
lifters_capped_u=62808000
accelerator_capped_u=62808000
systemcraft_capped_u=62808000
compressor_capped_u=62808000
succ_capped_u=62808000
orchid_capped_u=62808000
the_vat_capped_u=62808000
asteroid_manufactory_capped_u=62808000
psychic_beacon_capped_1=62808000
asteroid_artillery_capped_u=62808000
ehof_ai_capped_1=62808000
compound_capped_1=62808000
giga_dyson_scaling=62808000
giga_lifter_scaling=62808000
giga_matroishka_scaling=62808000
giga_paluushia=62808000
giga_build_infinite_megas=62808000
giga_core_shuffle=62808000
giga_galactic_fed_shuffle=62808000
gpm_initialisation_menu=62808000
gpm_modifier_amount_normal=62808000
gpm_galaxy_age_default=62808000
giga_menu_initial_settings_done=62808000
giga_versioned=62808000
giga_blokkats_easy=62808000
giga_core_aeternum_1=62808000
vanilla_strategic_capped_u=62808000
set_ast_art_max_points=62808000
giga_game_started=62808000
giga_game_started_real=62808000
loris_portrait_exists=62808000
dietrich_portrait_exists=62808000
compound_disabled=62808000
giga_fe_megas_set_up=62808000
apply_real_space_settings=62808000
expanded_stellaris_traditions_mod_in_use=62808024
pokemontrait_active=62808024
giga_fe_megas_spawned=62808072
ehof_compatibility=62808720
mem_wpdr_ship_disabled=62813232
anomaly_mem_snowed_in_category=62846808
anomaly_outcome_happened_mem_defying_gravity.200=62849592
pd_missing_colonists=62851200
anomaly_mem_ashes_category=62886912
anomaly_on_solar_sails_cat=62896848
anomaly_outcome_happened_mem_defying_gravity.400=62904048
anomaly_outcome_happened_mem_stuck_in_glacier.60=62907000
anomaly_outcome_happened_mem_ea_uplifter.100=62913408
mem_ea_uplifter_quest_started=62913408
mem_space_monster_attacks_crystal=62930640
anomaly_outcome_happened_mem_defying_gravity.300=62963472
anomaly_mem_convict_category=62978880
mem_death_world_started=62983680
gpm_r_mysterious_shield_generator_found=62994312
anomaly_mem_sadrell_gas_giant_station_category=63000840
hivers_appeared=63042960
gpm_r_quantum_sphere_found=63056400
gpm_r_encyclopedia_galactica_found=63064104
mem_ark_finished=63066120
gpm_r_experimental_weapon_found=63079224
anomaly_outcome_happened_mem_rebel_yell.9=63082104
gpm_r_banner_of_the_fallen_found=63091920
gpm_r_power_core_found=63112920
fumongus_active=63115056
fumongus_resolved=63115056
gpm_r_fallout_emergency_replicator_found=63121584
mem_food_constructor_started=63133440
gpm_r_self_assembly_hub_found=63160968
mem_sadrell_someone_encountered_the_gate=63580368
anomaly_mem_sadrell_crashed_liner_category=63177960
mem_visitor=63181080
mem_visitor_finished=63181416
gpm_r_earthquake_engine_found=63193920
gpm_r_positronic_microchip_found=63202128
anomaly_ANCREL_RUBRICATOR_CAT=63205368
gpm_r_cloaking_device_found=63218640
gpm_r_ai_architect_found=63235848
gpm_r_datacube_found=63238656
mem_snowed_in_first_loop_done=63249648
gpm_r_encrypted_sct_found=63251808
gpm_r_zero_energy_generator_found=63255000
anomaly_mem_sadrell_gas_giant_satellite_category=63282288
gpm_r_enigmatic_advisor_found=63295920
hatchling_triggered=63323472
gpm_r_manufactorium_ship_found=63449352
est_perseverance_5_picked_flag=63336744
gpm_r_gravity_engine_found=63342264
gpm_r_sentinel_queen_found=63344040
gpm_r_self_repairing_obelisk_found=63346128
gpm_r_venerable_dreadnaught_found=63349872
mem_albino_crystal_papa_spawned=63359280
mme_albino_crystal_station_dismantled=63359280
pyorun_czyrni_surveyed=63372576
mem_rogue_drone=63409512
mem_rebel_yell_wormhole_opened=63410304
gpm_r_codex_administratum_found=63419040
mem_lunar_age_path_chosen=63422448
mem_lunar_age_independence_path=63422448
mem_lunar_age_path_complete=63425328
est_foundation_2_picked_flag=63427608
gpm_r_soul_gem_found=63448824
esap_mod_in_use=63543984
mem_dwarf_fortress_outcome_1_2=63549360
mem_dwarf_fortress_outcome_2_3=63566904
galcom_founding_begun=63585600
galactic_community_founded=63594240
mem_dwarf_fortress_outcome_3_2=63641376
flusion_muno_event_happened=63601104
mem_elusive_carcosa=63612240
mem_vestigial_wormhole_ship_emerged=63631584
giga_galactic_core_spawned=63688584
galactic_community_resolution_passed=63697896
galactic_focus_pass_a_resolution_completed=63646056
birch_black_hole_occured=63672000
no_more_amoeba_garrison_spawns=63672000
giga_core_birch=63688584
giga_core_aeternum=63688584
galactic_market_founded=63689256
From global flags I can immediately tell you are using Real Space New Frontiers which is not updated to 3.4, and that's only one outdated mod I found within one minute.
Do not use outdated mods.
Removing mods from ongoing game can result in a crash too. Scrap the game.