DaemonUmbra

It gives you a link that you post here

SpartanShields does not have a version of Minecraft 1.14 and will likely target 1.14.4 if/when it does. I suggest you move on to 1.14.4

They only appear to yourself and other people using Optifine, they are not registered with Mojang, and selling "capes" is against Minecraft's Commercial EULA. https://help.mojang.com/customer/en/portal/articles/1590522-minecraft-commercial-use

Please provide your debug.log from the server

Please read the Logs section of my signature below and provide the appropriate log in the appropriate manner.

The old launcher called them profiles, the new launcher calls them Installations, just click the Installations tab, click "New", fill out your options, save, and click play

You must use Java 8, 9, or 10. 11 can't be supported due to a core library breaking compat with Java 8 (the version Mojang ships with the game) when it added support for Java 11

1.7.10 is no longer supported on this forum due to its age. Please update to a modern version of Minecraft to receive support.

Forge installs itself as a version of Minecraft. Make a new Profile/Installation and select Forge from the version dropdown. (Note: For some reason Forge 1.12.2 gets booted to the bottom of the list.)

Try without Optifine

Try removing apothesis and/or caelus

The exact way you have, except without renaming the vanilla jar to "forgeserver"

Please provide a screenshot of what you see, a lot of this sounds like a misunderstanding of how Profiles/Installations work

The filenames of one or more of your mods suggests you got them from a repost site. Please read up on the StopModReposts project (link in my signature) for info on why this is a bad thing.

1.7.10 is no longer supported on this forum due to its age. Please update to a modern version of Minecraft to receive support.

Do you have Java installed?

Update Java

Try updating Java

DoggyTalents was made for a beta version of Forge and needs to be updated for the Recommended Build

Pixelmon requires a specific version of Forge to work correctly, unfortunately they do not indicate this in their mod file so Forge is unaware and can't show an error screen, please report this to the Pixelmon Devs.

Star the Forge jar instead of the Vanilla Jar as Disieben said. Just treat the Forge jar as you would treat the vanilla jar.

Please read the Logs section of my signature below and provide the appropriate log in the appropriate manner.

Is that all? There's no crash here but it looks incomplete. If that's all, do you see a file called something like hs_err_pid?

Hijacking responses split and merged, stop. If you want support update to a modern version of the game and make your own thread.

Please read the Logs section of my signature below and provide the appropriate log in the appropriate manner.