Outdated Client

Hello, this is my first time on the forums, i need some help with an issue of the server saying that i have an out dated client when i use the exact same version and launcher and release as the server.
btw im playing age of engineering version 1.10.2 release 1.1.2
the only mod that i added was optifine.

Quote from Roman

Please install the modpack in the default configuration. Don't add or remove any mods.

ok that sounds like a reasonable explanation, but other times before i have played modpacks like farming valley and sky factory 3, 3.5, and 4 with optifine, and it worked perfectly on the server.

Quote from Roman

That's possible.
Normally I would also say that it should work with optifine, but for troubleshooting you should try to join it without optifine.

thank you for the advice, but i tried to connect without optifine and i still get the same errors. if you find a solution, please tell me, this is what is going on in the console.should i try to install the version of the mods they tell me to?
1[21:06:08] [Server thread/INFO]: Starting minecraft server version 1.10.2
2[21:06:53] [Server thread/INFO]: Loading properties
3[21:06:53] [Server thread/INFO]: Default game type: SURVIVAL
4[21:06:53] [Server thread/INFO]: Generating keypair
5[21:06:53] [Server thread/INFO]: Starting Minecraft server on *:48679
6[21:06:53] [Server thread/INFO]: Using epoll channel type
7[21:07:06] [Server thread/INFO]: Preparing level "world"
8[21:07:08] [Server thread/INFO]: Preparing start region for level 0
9[21:07:09] [Server thread/INFO]: Preparing spawn area: 36%
10[21:07:10] [Server thread/INFO]: Preparing spawn area: 80%
11[21:07:10] [Server thread/INFO]: Done (4.280s)! For help, type "help" or "?"
12[21:07:10] [Server thread/INFO]: Starting GS4 status listener
13[21:07:10] [Query Listener #1/INFO]: Query running on **.**.**.**:48679
14[21:07:30] [User Authenticator #1/INFO]: UUID of player DerpyNinja476 is a2e8be6e-d134-4c0f-8e7d-e3b37cbd2b2b
15[21:07:30] [Server thread/INFO]: DerpyNinja476 lost connection: TextComponent{text='Mod rejections [FMLMod:quantumstorage{3.3.3}, FMLMod:brandonscore{2.1.12}, FMLMod:zerocore{1.10.2-0.1.0.6}, FMLMod:chiselsandbits{12.15}, FMLMod:bigreactors{1.10.2-0.4.5.30}, FMLMod:wct{0.1.32}, FMLMod:draconicevolution{2.1.6}, FMLMod:integrateddynamics{0.7.12}, FMLMod:techreborn{**.**.**.**}, FMLMod:theoneprobe{1.4.18}, FMLMod:cyclopscore{0.10.9}, FMLMod:bdlib{**.**.**.**}]', siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null, insertion=null}}
16[21:07:30] [Server thread/INFO]: DerpyNinja476 left the game

Quote from Roman

We'll have a look at it.

so... have you had a look at it yet??? it has been over a month since you've responded

so what would i need to do in order to fix it?