PS4 login screen problem

Date & Time: 5:30 PM
Frequency: Many times
World name: Lich
Character name: Y'zehed Nunh
Retainer name: N/A
NPC name: N/A
Monster name: N/A
Class/Level: 31
Party or Solo: Solo
In-game time: N/A
Area and coordinates: N/A
Housing: N/A
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Steps:
1. Launch the game from the PS4 menu.
2. The browser for the login page is being loaded.
3. The page is black and stays forever.
4. I need to relaunch the game to solve the problem.
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Connection Specs
- Type of internet connection/provider: STC
- Modem maker/model number: STC HomeBroadband.

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■ PS4 Specs

Model Number of the PlayStation®4 You Are Using
- Model Number: CUH-1115A

Model Number of the PlayStation®Vita You Are Using
- Model Number: PCH-2001